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Grok 4.1 fast thinking

Grok 4.1 Fast Thinking is the reasoning-enabled variant of Grok 4.1 Fast. It provides extended thought processes for complex problem-solving within a 2M context.

Thinking Mode
Parameters
N/A
Context
2,000,000 tokens
Released
Invalid Date

Leaderboards

Average Score combining domain-specific Autobench scores; Higher is better

Performance vs. Industry Average

Context Window

Grok 4.1 fast thinking has a larger context window than average (406k tokens), with a context window of 2000k tokens.

Grok 4.1 fast thinking - AutoBench