Grok 4.1 moves to version Grok 4.1

The OnAirToday AI Progress Tracker recorded a verified change to xAI's Grok 4.1 (version Grok 4.1): Version now Grok 4.1 (was grok-4.1).

xAI's launch documentation describes Grok 4.1 as a conversational model with improvements in creative writing, emotional understanding and factual reliability. Live source verification is unavailable in this response, so current availability and subsequent releases cannot be comprehensively confirmed; Grok 4.1 Fast is a separately documented later variant.

What changed in this review:

• Removed the unsupported 256K context-window value for this exact model.
• Removed unverified $3 input and $15 output pricing rather than carrying forward potentially mismatched API prices.
• Replaced the blanket claim of no primary-source benchmarks: xAI publishes evaluations, but none are included for the requested suites.
• Added documented improvements in emotional understanding, creative writing and hallucination reduction.
• Grok 4.1 Fast was subsequently released as a separate variant; its specifications are not attributed to Grok 4.1.
• Current availability, later releases and incident coverage remain unverified without live source access.

Teams building on Grok 4.1 should confirm limits, pricing and benchmark coverage against the vendor's own documentation before relying on these figures.

The full profile — capabilities, benchmark citations, known flaws and risk guidance — is on the tracker at /ai-models/grok-4-1.

References:

• https://x.ai/news/grok-4-1
• https://x.ai/news/grok-4-1-fast