Grok

The Grok line closing the frontier gap as a FAST FOLLOWER, not mid-pack (crawl 2026-07-24 corrected our seed): Grok 4.5 (07-08) posted the biggest single-gen leap on the AA Intelligence Index (38→54), 4th at launch, strong on coding (76, ties GPT-5.5) and price ($2/$6, 500k context) — the real weakness is factuality (~54% hallucination). Track Grok 5 (training on Colossus 2; ship date slipping Q1→Q3+ amid Musk hype), the $60B Cursor bet arming coding, and whether owning the mines sustains a lead vs. OpenAI/Anthropic.

STATUS · OPEN OPENED · 2026-07-24 LAST SEEN · 2026-07-25

SpaceX Elon Musk xAI

This week's evidence

xAI joined the Open Secure AI Alliance — a safety-signal move in the same cycle as the Arkansas suit and NCOSE pressure. 2026-07-27

2026-07-24 — Opened + crawled

Thread opened (ben-steer). ⟨steer 2026-07-24⟩
Verdict: Grok is genuinely closing the gap, not mid-pack — but as a fast follower, not the leader. Grok 4.5 posted the biggest single-generation leap on the Artificial Analysis Intelligence Index (38→54, landing 4th at launch), strong on coding and price, but trails on peak intelligence and has a serious factuality gap. Two of our working facts were wrong (corrected below). ⟨crawl 2026-07-24⟩

← Backstory (crawl 2026-07-24 → artifacts/findings/grok-frontier-2026-07-24.md)

2026-07-08→09 — Grok 4.5, then GPT-5.6 a day later

Grok 4.5 shipped 07-08 (“V9” foundation, ~1.5T params, co-trained on Cursor data): $2/$6 per M tokens, 500K context (down from 4.3’s 1M), 4th on the AA Intelligence Index (score 54), coding index 76 (ties GPT-5.5). Corrects our seed facts — it is not ~9th, and coding is a strength; the real weakness is factuality (~54% hallucination on AA-Omniscience). (OpenRouter) ⟨crawl 2026-07-24⟩
OpenAI shipped GPT-5.6 (Sol/Terra/Luna) 07-09, one day later, re-topping the board and likely bumping Grok to ~5th. (OpenAI) ⟨crawl 2026-07-24⟩

2026-06-16 — The $60B coding bet

SpaceX to acquire Cursor (Anysphere) for ~$60B all-stock — the largest startup acquisition ever, arming Grok’s coding stack (Grok 4.5 was co-trained on Cursor data). ⚠ Well-sourced (CNBC/TechCrunch/Forbes) but a dedicated financing crawl rated the sourcing thinner — track for a filing. (CNBC) ⟨crawl 2026-07-24⟩

2026-01-28 — Grok 5 begins training

Grok 5 confirmed training on Colossus 2 (1 GW, Memphis) at the xAI Series E; rumored 6T-param MoE, “AGI-level.” ⚠ Musk-hype flag — the ship date has slipped Q1→Q2→Q3+ 2026; only the training is confirmed, specs are rumored. ⟨crawl 2026-07-24⟩

2025-07-09 → 2026 — The arc that got it here

Grok 4 / 4 Heavy (07-09-2025) — reasoning-first flagship trained on Colossus’s 200k GPUs, frontier at launch (first to 50% on Humanity’s Last Exam). Then Grok 4.1 (11-2025, incremental) and Grok 4.3 (04-30-2026, 1M context, cut to $1.25/$2.50) before 4.5. The distinctive moat throughout: real-time X-timeline data no rival has, plus Tesla in-car distribution (“Hey Grok”). (Wikipedia) ⟨crawl 2026-07-24⟩

The Projection