xAI·released 2025-11-171 source
Not yet benchmarked
Consensus: LiteLLM · See every model’s pricing →
Claims drawn from cited facts, not live model generation.
This model was developed by xAI. It was released in 2025.
2 cited facts
Every cell here is empty for lack of measurement, not lack of merit — there is nothing to weigh yet.
1 cited fact
This model does not hold the top score on any benchmark, meaning it has no genuine category leadership.
1 cited fact
6 facts cross-checked across data sources: 6 single-source.
Source facts, citations, and refresh stamp for this record.
Sources: curated_models, litellm_prices
Grok 4.1 Fast is an AI model developed by xAI, released 2025-11-17. Its benchmark record below tags every score as independently reproduced, self-reported, or unverified.
Listed API pricing: $0.2 per million input tokens, $0.5 per million output tokens. See the pricing block for the full breakdown.