#73
Grok 4 Fast Reasoning
grok-4-fast-reasoningHelpfulness
Instruction
Following
Comprehension
Empathy
Creative
Writing
Helpfulness
0.0
Instruction Following
0.0
Comprehension
0.0
Empathy
0.0
Creative Writing
0.0
Speed
Avg 88 tok/s
Overall Assistant Score
An average score combining the 5 main categories.
84.65 pts
Rank #73
34th Percentile
0
Novice
33
Capable
66
Proficient
100
Expert
Grok 4 Fast Reasoning is xAI's cost-efficient large-context model that targets near-frontier quality while dramatically reducing per-token costs. It delivers strong reasoning and instruction following on complex math, coding, and analytical tasks, landing between frontier models and earlier Grok generations in overall quality. Compared with Grok 4.1 Thinking it sacrifices a bit of peak text quality and creativity in exchange for much higher throughput, making it a great default for production assistants and agentic tools that need both depth and speed.
Overall Score vs Price
Price axis is logarithmic (USD per 1M input tokens) · Higher score and lower price is better
Ringed point is this model
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Speed
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