Revision History

Internal links: xai_colossus_2

Improve internal links (2026-10-13)

Correction: the $18 billion Colossus figure is October 2025 reporting on Colossus 2, after Grok 4 was trained

Correction: the model card is a safety report with no architecture content, a self-refuting Opus 4 pricing comparison, wrong retirement slugs, an unshipped Grok 4 Code product with invented benchmark figures, and an uncited Colossus spend

Correction: Vending-Bench was described as running "roughly a year of in-simulation days" (runs are capped at 2,000 messages) and Grok 4's top placing was dated to August 2025 with no source. Grok 4 took the top spot on July 10, 2025; the leaderboard ranks by minimum net worth, and as of 1 Oct 2026 Grok 4 is second behind Gemini 3 Pro. Sourced ref 38 to the archived August 13, 2025 update and removed two unsupported claims (Grok 4 run traces that abandoned the simulation, and xAI not leading with the eval in its marketing: Andon Labs was in fact invited to present the update).

Added 6 contextual internal links

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Pre-update snapshot before enhancement to 8492 words.

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