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xAI Model Releases, Tracked
2 releases across 2 models tracked from July 23, 2026 to August 21, 2026. Updated as new xAI releases are covered.
- Deep DiveGrok 4.6Grok 4.6 Matches GPT-5.6 Sol on Intelligence Index With Half the Context Turns
xAI released Grok 4.6 on August 12, 2026 — a post-training update to the Grok 4.5 foundation that reaches an AA Intelligence Index score of 61, tying GPT-5.6 Sol, while completing long-horizon agentic tasks in roughly half the turns of competing models. It ships with a new 'xhigh' reasoning level and a 500K context window.
- News BriefGrok STT 1.0xAI Releases Grok STT 1.0: Speaker Diarization, 25+ Languages, $0.10 per Hour
xAI launched Grok STT 1.0, a standalone speech-to-text API with speaker diarization, word-level timestamps, and support for 25+ languages, priced at $0.10 per hour.