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Grok 4.1 Fast (Non-reasoning)

SpaceXAIGrokProprietary

Description

Bringing the next generation of tool-calling agents to the xAI API. Grok-4.1 Fast Non-Reasoning uses no thinking tokens for immediate responses, making it faster while maintaining high quality.

Release Date
2025-11-19
Parameters
—
Context Length
—
Modalities
image, text

Capability Radar

29
general
40
coding
39
reasoning
46
science
39
agents
80
multimodal

Rankings

Domain#RankScoreSource
Code Ranking410
33.0
AA
General Ranking314
42.0
AA
Science419
35.0
AA

Benchmark Scores (LLM Stats)

(LLM Stats (zeroeval))

No benchmark data available

AA Evaluation Indices

(Artificial Analysis)
Mmlu Pro(TIGER-Lab (Univ. of Waterloo, Toronto, CMU, 2024))
74.3
Tau2(Sierra + U Toronto + Vector Institute (2025))
63.7
Gpqa(NYU + Cohere + Anthropic (2023))
63.7
Livecodebench(UC Berkeley + MIT + Cornell (2024))
39.9
Ifbench(Google Research (2023))
36.5
Aime 25(MAA (Mathematical Association of America))
34.3
Math Index(Artificial Analysis)
34.3
Lcr(Artificial Analysis)
31.3
Terminalbench Hard(Stanford × Laude Institute (2026))
14.4
Intelligence Index(Artificial Analysis)
11.3
Hle(Center for AI Safety + Scale AI (2025))
5.1

LLM Stats Category Scores

(LLM Stats (zeroeval))

No category score data available

Pricing

Input PriceFree
Output PriceFree
Blended Price (3:1)Free

Speed

Tokens/sec0.0
Time to First Token0.00s
Time to Answer0.00s

Provider Price Ranking

Provider Price Ranking

1 providers

ProviderInputOutput
1xAI
$0
$0

Compare pricing across different API providers for this model.

External Sources