The AI Stack Weekly

Issue 08 · Week 24 of 2026.

June 13, 2026/Industry brief · ~7 min read/Public sources onlyDownload brief

The Bottom Line

The frontier became a sovereign and capital-markets object, not just a benchmark race.

Flywheel arcAll three lenses

W24 was the week the model layer stopped behaving like a product cycle and started behaving like critical infrastructure with a kill switch. Anthropic shipped Claude Fable 5, a new "Mythos-class" tier above Opus, and it debuted #1 on the independent Artificial Analysis Intelligence Index at 64.9 — then, three days later (Jun 12), a U.S. government export-control directive forced Anthropic to disable Fable 5 and Mythos 5 for every customer because it could not filter foreign-national access in real time; queries now fall back to Opus 4.8. That is the first known government-forced takedown of a deployed frontier model, and it converts "which model is best" into "which model can be switched off by a third party." The same week, the capital story went public: SpaceX, with xAI embedded, priced the largest IPO ever (~$75B raised) and closed near a $2.1T valuation, giving the market its first traded read on a frontier lab, while OpenAI's confidential S-1 (Jun 8) kept the next two labs at the pre-public stage. Underneath, demand concentrated visibly — Oracle booked an RPO of $638B (+363% YoY), TSMC printed a record month with CoWoS sold out through 2027, and d-Matrix put a merchant inference ASIC into volume production explicitly to route around the HBM chokepoint. Net/net: boards should treat top-tier closed models as single points of failure and mandate hard fallbacks; investors now have a public frontier-lab proxy to price against; architects should design multi-model routing and second-source compute; operators should assume the binding constraints are regulatory access, power, and packaging, not raw intelligence.

The three lenses

What moved this week, and what to do about it.

10 events across the flywheel — 4 software, 3 hardware, 3 networking.

Software.

Jun 9
Anthropic shipped Claude Fable 5 (and Mythos 5), a new Mythos-class tier above Opus, GA across the Claude API, Bedrock, Vertex AI, and Microsoft Foundry; it debuted #1 on the Artificial Analysis Intelligence Index at 64.9
Anthropic launch; Artificial Analysis
Jun 12
A U.S. government export-control directive forced Anthropic to disable Claude Fable 5 and Mythos 5 globally for all customers; unable to filter foreign-national access in real time, Anthropic routed queries back to Opus 4.8 (still suspended at week's end)
VentureBeat, MarkTechPost (Reuters/BBC/Axios cited secondhand)
Jun 10
Google DeepMind released DiffusionGemma, an Apache-2.0 open text-diffusion model (26B / ~3.8B active MoE, multimodal-in, 256K context) generating ~1,000+ tok/s on an H100 with native vLLM support
Google blog; Hugging Face model card
Jun 13
Gemini 3.5 Pro remained not-GA at W24 close: still a limited Vertex enterprise preview with no public API identifier, price row, or independent benchmark, despite a Google-stated June target
TechTimes; Presenc launch brief

What this means

The model layer's news was binary: a new closed leader arrived and then was switched off by a government within 72 hours, while the durable open progress was an efficiency path (text diffusion) rather than another frontier crown. Architects should standardize an evaluation harness and a fallback router now so a top-tier model can be slotted — or revoked — without freezing deployments; see The Model Pulse for the full architecture read.

Hardware.

Jun 10
Oracle reported Q4 FY26 with remaining performance obligations of $638B (+363% YoY, +$85B QoQ), OCI/IaaS +93% to $5.8B, ~1GW of new AI capacity targeted in Q1 FY27, and a ~$70B FY27 net capex guide
Oracle Investor Relations; CNBC
Jun 10
TSMC reported record May revenue of NT$416.98B (+30.1% YoY), confirming sustained AI/HPC pull-through at the foundry chokepoint, with CoWoS advanced packaging sold out through 2027
TSMC press release; SEC Form 6-K
Jun 9
d-Matrix moved its Corsair inference accelerator into volume production — a digital in-memory-compute ASIC (TSMC N6) that the company says runs inference ~10x faster and ~3x cheaper than a standalone GPU while explicitly architecting around the HBM/DRAM chokepoint
CNBC; d-Matrix

What this means

Hardware's signal this week was demand and supply, not silicon launches: Oracle proves AI compute is being booked as long-duration backlog, TSMC proves it is foundry- and packaging-gated, and d-Matrix proves the inference layer is diversifying away from merchant GPUs and HBM. Investors with concentrated GPU exposure should track contracted-backlog conversion and ASIC ramps; operators should secure packaging-bound capacity early.

Networking.

Jun 9
Arista launched its first 1.6T rack-scale switch portfolio (7060XE7) built on Broadcom's Tomahawk 6 — a fresh Broadcom 1.6T production design win for AI back-end fabric
Arista; Broadcom
Jun 8
Broadcom disclosed a scale-up Ethernet design win with inference-ASIC startup FuriosaAI, extending AI-Ethernet beyond hyperscaler back ends into merchant accelerator racks
Broadcom; FuriosaAI
Jun 9
Marvell's pending S&P 500 inclusion (replacing Campbell Soup, ~late June) marked capital-markets validation of the custom-silicon and AI-networking designer thesis
The Next Platform

What this means

1.6T fabric is now shipping in production, but the in-window proof points all ran through Broadcom — the marquee CPO/optics catalysts from Marvell, Credo, Coherent, and Lumentum fell just outside the week. Network architects should treat 1.6T Ethernet as deployable today while pressing for a second silicon source before committing a fabric roadmap to one vendor.

Capital flow

Money in, revenue out.

4 categories tracked. Capital deployment up in 3 of 4; revenue follows at multiples of 0.21 to 0.6.

The four-category scorecard. Where capital is going in, where revenue is coming out, and how much of it is real. The one chart for the boardroom.

What’s real, what’s noise.

5 claims this week — 3 signal, 2 noise.

Each claim is scored 1–5 on source quality and triangulation. Anything 2 or below is flagged as noise. Where consensus is wrong, we say so.

5 / 5
Anthropic shipped Claude Fable 5, a new Mythos-class tier, and it debuted #1 on the independent Artificial Analysis Intelligence Index at 64.9.
Sources: Anthropic launch announcement; Artificial Analysis (independent pre-release access); arena.ai/LMArena board adds. Caveat: vendor pricing, independent index.
SIGNAL. A genuine new top of the closed frontier — but priced as an async heavy-lift tool ($10/$50 per MTok, ~2x Opus 4.8). Architects should route Fable 5 to high-value reasoning, not default every call to it.
4 / 5
A U.S. government export-control directive forced Anthropic to disable Fable 5 and Mythos 5 for all customers within three days of launch.
Sources: VentureBeat and MarkTechPost reporting; Reuters/BBC/Time/Axios cited secondhand. Caveat: the directive letter itself is not public.
SIGNAL. The first known government-forced takedown of a deployed frontier model. This is a concrete sovereign/regulatory single point of failure — boards should mandate hard model fallbacks and avoid single-sourcing the top tier.
5 / 5
SpaceX, with xAI embedded, priced the largest IPO ever and closed near a $2.1T valuation, putting a frontier lab inside a public security.
Sources: SEC registration; CNBC live IPO coverage. Multi-source, audited filing.
SIGNAL. Investors now have a public-market frontier-lab proxy (SPCX) that OpenAI and Anthropic roadshows will be measured against. The private-mark-only era for frontier labs is ending.
2 / 5 — noise
Claude Fable 5 is the definitive coding leader at 80.3% on SWE-Bench Pro.
Sources: Vendor-scaffold figure; independent vals.ai shows 95% on SWE-Bench Verified, but Scale SEAL has no Fable entry and an Epoch replication is pending.
NOISE until replicated. The AA Index lead is real and independent; the headline SWE-Bench Pro number is a vendor-harness result. Do not anchor a migration decision on it before third-party replication.
1 / 5 — noise
GPT-5.6 is imminent and will reset the frontier this month.
Sources: Backend codenames and prediction-market odds only; no system card, model page, or API contract exists.
NOISE. A rumor with no primary artifact. Keep current GPT-5.5 baselines and do not delay procurement on an unreleased SKU.

Early warning panel

The levers we monitor.

10 metrics tracked — 5 rising, 0 falling, 5 steady.

Current vs prior period. Each metric has a threshold where the read materially changes — this panel flags the inflection before it lands in headlines. Click any metric for the methodology and this-week read.

Metric

Current

Prior

Dir

Threshold

Frontier lab cash position (avg months runway, top 3)
~34-37 mo (xAI now public via SpaceX IPO)
~33-36 mo
↑
<18 mo triggers re-rating risk
What this measures
Top 3 frontier labs (OpenAI, Anthropic, Google DeepMind) by disclosed runway, with xAI now a public-market entity inside SpaceX (SPCX). The SpaceX/xAI IPO and OpenAI's confidential S-1 extend the category's access to capital. Boards should not assume frontier-lab funding pressure as a forcing function for short-term commercial concessions — capital access just widened.
Hyperscaler capex / AI revenue ratio (top 4 weighted)
~5.0-5.3 (Oracle FY27 ~$70B guide; top-4 flat)
~5.0-5.2
↑
>6.0 invites investor pushback at next earnings
What this measures
Top 4 hyperscalers (MSFT, GOOG, META, AMZN) weighted aggregate of total capex divided by AI-attributable revenue. No new top-4 prints in-window, but Oracle's ~$70B FY27 net capex guide and -$24B FY26 free cash flow push the broader hosted-capex ratio up and re-open the funding-vs-demand debate. Investors should keep the bubble hypothesis on funding/conversion, not demand.
CoreWeave revenue backlog
$99.4B (next print Q2, early Aug)
$99.4B
→
Conversion velocity matters more than gross figure
What this measures
Booked but unrecognized revenue. The $99.4B audited figure (Mar 31) is unchanged; the in-window event was financing, not backlog — CoreWeave priced $3.25B of senior notes at 8.5-9.625%. Operators should watch the Q2 backlog print in early August and the cost-of-capital spread versus GPU-backed facilities.
NVIDIA Q-over-Q data center revenue
$75.2B (Q1 FY27); Q2 guide $91B, reports Aug 26
$75.2B (Q1 FY27); Rubin production ramp confirmed
→
Q2 FY27 guide $91B implies further +21% QoQ
What this measures
Q1 FY27 Data Center revenue of $75.2B was reported May 20; the Q2 guide is $91B and the next earnings print is Aug 26. No within-window change. Adjacent demand (Oracle RPO $638B, TSMC record month, CoWoS sold out through 2027) supports the guide; packaging and power remain the binding constraints, not demand.
Open vs closed gap on SWE-Bench Pro (coding)
Closed lead widened on paper (Fable 5 80.3% vendor scaffold) vs open ~58.6%; contested
Closed +~19pp (no new Pro challenger yet)
↑
Sustained open lead reshapes enterprise procurement
What this measures
Claude Fable 5's vendor-scaffold SWE-Bench Pro figure (80.3%) widens the headline closed-over-open gap, but it is not yet replicated by Scale SEAL or Epoch; independent vals.ai shows 95% on SWE-Bench Verified. The strongest open item, MiniMax-M3 (AA Index 55), has not released weights. Architects should treat the widened gap as provisional and keep open self-host options in pilot.
Sovereign AI commitments (count / aggregate $)
~14 / ~$180B+ (NAVER+NVIDIA 1GW added)
~13 / ~$160B+; power-first gating rising
↑
—
What this measures
Analyst-curated count of sovereign/national AI-compute commitments. NAVER + NVIDIA's gigawatt-scale Korean AI factory (roadmap to 1GW; ~$18B revenue goal by 2030) was added in-window. Operators with APAC workloads should treat Korea as a credible sovereign landing zone while pricing in multi-year build timelines.
PJM 2026/27 capacity auction price ($/MW-day)
$329.17 (2028/29 BRA clears Jun 30-Jul 7)
$329.17
→
11x in 24 months — power is the new binding constraint
What this measures
The 2026/27 BRA cleared at the FERC cap ($329.17) and took effect June 1, 2026; the 2027/28 BRA cleared at $333.44. The next signal is the 2028/29 BRA, scheduled Jun 30-Jul 7, 2026, with a FERC collar capping it near $325. Architects should not assume near-term price relief; budget capacity at-cap through 2028.
Time-to-power, busiest US markets (months)
60-84 (new PJM); 2027/28 auction cleared short of target
60-84 (new PJM); power-first campuses rising
→
—
What this measures
Months from new-load interconnection request to energization. PJM's 2027/28 base auction cleared ~6,600MW short of its reliability requirement — the first RTO-wide shortfall, with a large share driven by data-center load. Architects should pre-commit power and long-lead grid equipment before pre-committing GPU SKUs.
Cost-per-task, frontier reasoning model
Fable 5 raises the top-tier list price ~2x; effective per-task cost depends on routing
~$0.10-$0.15 (effective); Fable 5 sets a 2x-Opus top tier ($10/$50 per MTok)
~$0.10-$0.15 (effective; unchanged)
→
—
What this measures
Median cost across frontier-tier reasoning models for a benchmark complex task. Claude Fable 5 lists at $10 in / $50 out per MTok (~2x Opus 4.8), pushing the ceiling up, but effective cost-per-task depends on how much work is routed to the top tier versus cheaper models. Operators running agents at scale should re-benchmark on cost-per-task, not list price.
Custom silicon share of incremental AI compute
~33-36%; d-Matrix Corsair inference ASIC in volume production
~33-36%; Broadcom AI revenue +143% YoY
↑
>35% materially compresses merchant GPU pricing
What this measures
d-Matrix's Corsair inference ASIC entered volume production in-window — a concrete merchant non-GPU data point, not a projection — and Marvell's pending S&P 500 inclusion validates the custom-silicon designer thesis. Investors with concentrated NVIDIA exposure should diversify into ASIC co-design (Broadcom, Marvell) and inference-specialist silicon, and into advanced packaging / power.

Frontier lab cash position (avg months runway, top 3)
~34-37 mo (xAI now public via SpaceX IPO)↑vs ~33-36 mo
Threshold: <18 mo triggers re-rating risk
What this measures
Top 3 frontier labs (OpenAI, Anthropic, Google DeepMind) by disclosed runway, with xAI now a public-market entity inside SpaceX (SPCX). The SpaceX/xAI IPO and OpenAI's confidential S-1 extend the category's access to capital. Boards should not assume frontier-lab funding pressure as a forcing function for short-term commercial concessions — capital access just widened.
Hyperscaler capex / AI revenue ratio (top 4 weighted)
~5.0-5.3 (Oracle FY27 ~$70B guide; top-4 flat)↑vs ~5.0-5.2
Threshold: >6.0 invites investor pushback at next earnings
What this measures
Top 4 hyperscalers (MSFT, GOOG, META, AMZN) weighted aggregate of total capex divided by AI-attributable revenue. No new top-4 prints in-window, but Oracle's ~$70B FY27 net capex guide and -$24B FY26 free cash flow push the broader hosted-capex ratio up and re-open the funding-vs-demand debate. Investors should keep the bubble hypothesis on funding/conversion, not demand.
CoreWeave revenue backlog
$99.4B (next print Q2, early Aug)→vs $99.4B
Threshold: Conversion velocity matters more than gross figure
What this measures
Booked but unrecognized revenue. The $99.4B audited figure (Mar 31) is unchanged; the in-window event was financing, not backlog — CoreWeave priced $3.25B of senior notes at 8.5-9.625%. Operators should watch the Q2 backlog print in early August and the cost-of-capital spread versus GPU-backed facilities.
NVIDIA Q-over-Q data center revenue
$75.2B (Q1 FY27); Q2 guide $91B, reports Aug 26→vs $75.2B (Q1 FY27); Rubin production ramp confirmed
Threshold: Q2 FY27 guide $91B implies further +21% QoQ
What this measures
Q1 FY27 Data Center revenue of $75.2B was reported May 20; the Q2 guide is $91B and the next earnings print is Aug 26. No within-window change. Adjacent demand (Oracle RPO $638B, TSMC record month, CoWoS sold out through 2027) supports the guide; packaging and power remain the binding constraints, not demand.
Open vs closed gap on SWE-Bench Pro (coding)
Closed lead widened on paper (Fable 5 80.3% vendor scaffold) vs open ~58.6%; contested↑vs Closed +~19pp (no new Pro challenger yet)
Threshold: Sustained open lead reshapes enterprise procurement
What this measures
Claude Fable 5's vendor-scaffold SWE-Bench Pro figure (80.3%) widens the headline closed-over-open gap, but it is not yet replicated by Scale SEAL or Epoch; independent vals.ai shows 95% on SWE-Bench Verified. The strongest open item, MiniMax-M3 (AA Index 55), has not released weights. Architects should treat the widened gap as provisional and keep open self-host options in pilot.
Sovereign AI commitments (count / aggregate $)
~14 / ~$180B+ (NAVER+NVIDIA 1GW added)↑vs ~13 / ~$160B+; power-first gating rising
What this measures
Analyst-curated count of sovereign/national AI-compute commitments. NAVER + NVIDIA's gigawatt-scale Korean AI factory (roadmap to 1GW; ~$18B revenue goal by 2030) was added in-window. Operators with APAC workloads should treat Korea as a credible sovereign landing zone while pricing in multi-year build timelines.
PJM 2026/27 capacity auction price ($/MW-day)
$329.17 (2028/29 BRA clears Jun 30-Jul 7)→vs $329.17
Threshold: 11x in 24 months — power is the new binding constraint
What this measures
The 2026/27 BRA cleared at the FERC cap ($329.17) and took effect June 1, 2026; the 2027/28 BRA cleared at $333.44. The next signal is the 2028/29 BRA, scheduled Jun 30-Jul 7, 2026, with a FERC collar capping it near $325. Architects should not assume near-term price relief; budget capacity at-cap through 2028.
Time-to-power, busiest US markets (months)
60-84 (new PJM); 2027/28 auction cleared short of target→vs 60-84 (new PJM); power-first campuses rising
What this measures
Months from new-load interconnection request to energization. PJM's 2027/28 base auction cleared ~6,600MW short of its reliability requirement — the first RTO-wide shortfall, with a large share driven by data-center load. Architects should pre-commit power and long-lead grid equipment before pre-committing GPU SKUs.
Cost-per-task, frontier reasoning model
~$0.10-$0.15 (effective); Fable 5 sets a 2x-Opus top tier ($10/$50 per MTok)→vs ~$0.10-$0.15 (effective; unchanged)
Fable 5 raises the top-tier list price ~2x; effective per-task cost depends on routing
What this measures
Median cost across frontier-tier reasoning models for a benchmark complex task. Claude Fable 5 lists at $10 in / $50 out per MTok (~2x Opus 4.8), pushing the ceiling up, but effective cost-per-task depends on how much work is routed to the top tier versus cheaper models. Operators running agents at scale should re-benchmark on cost-per-task, not list price.
Custom silicon share of incremental AI compute
~33-36%; d-Matrix Corsair inference ASIC in volume production↑vs ~33-36%; Broadcom AI revenue +143% YoY
Threshold: >35% materially compresses merchant GPU pricing
What this measures
d-Matrix's Corsair inference ASIC entered volume production in-window — a concrete merchant non-GPU data point, not a projection — and Marvell's pending S&P 500 inclusion validates the custom-silicon designer thesis. Investors with concentrated NVIDIA exposure should diversify into ASIC co-design (Broadcom, Marvell) and inference-specialist silicon, and into advanced packaging / power.

Predictions

What we expect next.

6 predictions for the next 30-90 days, confidence 58%-65%.

Each prediction is falsifiable, time-bounded, and tied to a specific signal we will watch. Future issues score these hit, miss, partial, or pending and build a public track record.

Prediction 01

58%

confidence

Software

Gemini 3.5 Pro reaches public GA by June 30, 2026 but debuts below Claude Fable 5 on the Artificial Analysis Intelligence Index in its first independent pass.

Deadline: By June 30, 2026

Trigger: Google AI Studio / Vertex GA announcement plus Artificial Analysis leaderboard update.

Prediction 02

60%

confidence

Software

Anthropic restores public (non-government) access to a Fable-5-class model — with geo-gating or KYC controls — by July 31, 2026.

Deadline: By July 31, 2026

Trigger: Anthropic status page, model documentation, or press confirming restored availability.

Prediction 03

65%

confidence

Hardware

At least one more merchant inference-ASIC vendor (Groq, Cerebras, Tenstorrent, or d-Matrix) announces a volume-production or named-hyperscaler milestone before August 31, 2026.

Deadline: By August 31, 2026

Trigger: Vendor press release, earnings disclosure, or customer design-win announcement.

Prediction 04

60%

confidence

Networking

A second of (Marvell, Credo) cites a 1.6T or co-packaged-optics production design win by August 31, 2026, joining Broadcom's Tomahawk 6.

Deadline: By August 31, 2026

Trigger: Earnings call, product release, or customer design-win disclosure.

Prediction 05

62%

confidence

Capital

Neither OpenAI nor Anthropic converts its confidential draft to a publicly visible S-1 on SEC EDGAR before August 31, 2026.

Deadline: By August 31, 2026

Trigger: SEC EDGAR public filings; Reuters / Bloomberg / The Information confirmation of public S-1 vs confidential DRS.

Prediction 06

60%

confidence

Power

A hyperscaler announces a >500MW power-first AI campus or behind-the-meter generation deal by September 30, 2026.

Deadline: By September 30, 2026

Trigger: Hyperscaler energy/data-center announcement; utility or developer disclosure.

Track record

Scoring prior predictions.

5 prior predictions: 0 hit, 0 miss, 1 partial, 4 pending. Hit rate 0%.

5 predictions across issues so far. Hit rate: 0%. Hits 0, misses 0, partials 1, pending 4.

Prediction 01

60%

confidence

Software

Gemini 3.5 Pro reaches public GA by June 30, 2026, but does not exceed Claude Opus 4.8 on SWE-Bench Pro in its first independent Artificial Analysis run.

Deadline: By June 30, 2026

Trigger: Google AI Studio / Gemini API changelog plus Artificial Analysis leaderboard update.

pending— As of W24 close (Jun 13), Gemini 3.5 Pro is still not GA — limited Vertex preview, no public benchmark. Deadline June 30 not reached; the GA leg is now at risk and the bar has moved (Fable 5, not Opus 4.8, is the new top).

Prediction 02

70%

confidence

Hardware

At least one major OEM announces customer shipment or formal order availability for Vera Rubin NVL72-class systems before September 30, 2026.

Deadline: By September 30, 2026

Trigger: Dell, HPE, Lenovo, Supermicro, or NVIDIA customer-shipment announcement.

pending— Tracking ahead: the first operational Vera Rubin rack (Dell PowerEdge XE9812 -> CoreWeave) shipped Jun 1, with standalone Vera CPU order availability opening ~August and full systems at fall GA. Deadline Sep 30 not reached.

Prediction 03

65%

confidence

Hardware

Before August 31, 2026, at least one memory supplier or supply-chain analyst reports HBM4 allocation tightness despite three-supplier qualification.

Deadline: By August 31, 2026

Trigger: SK hynix, Samsung, Micron, TrendForce, or Bloomberg/Reuters supply-chain reporting.

pending— No new in-window allocation print, but Samsung's reported Gwangju advanced-packaging review and pending 2027 HBM4 price hikes reinforce the thesis. Deadline Aug 31 open.

Prediction 04

65%

confidence

Networking

Broadcom, Marvell, or NVIDIA announces a new CPO/1.6T production design win or revenue guide uplift tied to AI networking before August 31, 2026.

Deadline: By August 31, 2026

Trigger: Earnings call, product release, or customer design-win disclosure.

partial— Arista's 1.6T 7060XE7 portfolio on Broadcom's Tomahawk 6 (Jun 9) is a fresh Broadcom 1.6T production design win, satisfying the 1.6T leg; no co-packaged-optics production win or vendor revenue-guide uplift yet. Tracking to a full hit by deadline.

Prediction 05

60%

confidence

Power

A hyperscaler announces another >500MW power-first AI campus or behind-the-meter generation deal by September 30, 2026.

Deadline: By September 30, 2026

Trigger: Hyperscaler energy/data-center announcement; utility or developer disclosure.

pending— In-window power-first activity (Stark/Sagebrush 5.6GW gas-paired pipeline; NAVER+NVIDIA 1GW sovereign factory) was not a hyperscaler behind-the-meter deal. Deadline Sep 30 open.

Watchlist

On the radar this week.

5 catalysts to watch, starting Jun 14-30.

Specific catalysts that would change the read materially. Watching these tells us whether the thesis is strengthening or weakening.

Jun 14-30
Anthropic Fable 5 / Mythos 5 access restoration
Whether and how Anthropic restores a top-tier model after the government takedown will set the template for sovereign access risk. Watch for geo-gating, KYC, or a permanent capability split between civilian and government tiers.
Jun 14-30
Gemini 3.5 Pro GA and first independent benchmark
Google's Pro has slipped to the edge of its June commitment. A GA with an independent Artificial Analysis pass would show whether June is a real frontier reset or a third-place launch behind Fable 5 and GPT-5.5.
Jun 30-Jul 7
PJM 2028/29 base residual capacity auction
After two near-cap clears and a 2027/28 reliability shortfall, the 2028/29 auction (collar near $325/MW-day) will show whether power price pressure persists. It is the single most important power-cost signal of the quarter.
Jun-Aug
Second 1.6T / CPO design win and inference-ASIC adoption
The networking and custom-silicon theses need a second source. Marvell, Credo, Groq, Cerebras, or Tenstorrent commentary will show whether 1.6T fabric and merchant inference ASICs broaden beyond Broadcom and d-Matrix.
Jun-Jul
SPCX as frontier-lab proxy; OpenAI/Anthropic public S-1
SpaceX/xAI's post-IPO trading is now the public benchmark for frontier-lab value. A move to a publicly visible S-1 by OpenAI or Anthropic would be the next regime change for AI capital markets.

Companion reads

The rest of the spine.

The AI Stack Weekly is the cross-stack flywheel read. Pair it with the model-and-tree spine and the working framework to get the full picture.