readable AI benchmarks (simplified)
SpaceXAI
Grok 4 Fast (Reasoning)
Grok 4 Fast (Reasoning) has a Quality Score of 31.3, ranking 245th among 553 scored models. Per 1M tokens, pricing is $0.200 input and $0.500 output. It has a 2M token context window. Its Reliability Score is 35.0, ranking 262nd among 555 scored models, below average (total average: 35.7).
Quality Score31.3coverage 100.0%: AA Intelligence and AA-Omniscience outcomes available
Value Scorenot available
Factual reliability35.0
Cache Discountnot available
Model specification
- Reasoning
- reasoning
- Input modalities
- none
- Output modalities
- none
- Context window
- 2M tokens
- Weights
- closed weights
Token prices USD per 1M tokens
- Input
- $0.200
- Output
- $0.500
- Cached Input
- not available
- Cache write
- not available
- Cost per task
- not available
Capability
- Intelligence
- 17.9
- Coding
- not available
- Agentic
- not available
- Omniscience
- -29.9
- Correct
- 22.8%
- Blended price
- not available
Answer outcomes
Fully graded outcomes (Correct + Incorrect): 75.5%
Correct 22.8%Incorrect 52.7%Partial / not attempted 24.5%
Artificial Analysis benchmarks
- Humanity’s Last Exam
- 19%
- GPQA Diamond
- 85%
- CritPt
- 3%
- AA-Omniscience
- 35%
- AA-LCR
- 74%
Similar models
- Grok 4.1 Fast (Reasoning)SpaceXAIQuality Score 33.2Value Score not available
- Grok 3 mini Reasoning (high)SpaceXAIQuality Score 34.5Value Score 29.7
- Grok Code Fast 1SpaceXAIQuality Score 26.5Value Score not available
- Grok 4SpaceXAIQuality Score 42.8Value Score not available
- Grok 4.3 (low)SpaceXAIQuality Score 47.2Value Score 34.8
- Grok 4.20 0309 (Reasoning)SpaceXAIQuality Score 47.6Value Score 32.8