Grok 4 Fast (Non-reasoning)
xAIGrokProprietary
Description
Grok 4 Fast is a high-speed variant of Grok-4, optimized for faster inference while maintaining strong reasoning capabilities. It offers improved throughput and lower latency compared to the standard Grok-4 model.
Release Date
2025-09-19
Parameters
—
Context Length
—
Modalities
image, text
Capability Radar
32
general
39
coding
45
reasoning
40
scienceest.
40
agents
80
multimodal
Science uses a reasoning proxy when dedicated science benchmarks are unavailable.
Rankings
| Domain | #Rank | Score | Source |
|---|---|---|---|
| Agentic Capability | 99 | 45.0 | LS |
| Code Ranking | 293 | 30.0 | AA |
| General Ranking | 226 | 46.0 | AA |
| Math Reasoning | 215 | 42.0 | AA |
| Science | 277 | 41.0 | AA |
Benchmark Scores (LLM Stats)
Agents
BrowseComp
44.9%SR
Biology
GPQA
85.7%SR
Code
LiveCodeBench
80.0%SR
Factuality
SimpleQA
95.0%SR
Math
HMMT 2025
93.3%SR
AIME 2025
92.0%SR
Humanity's Last Exam
20.0%SR
AA Evaluation Indices
Math Index41.3
Intelligence Index16.5
Mmlu Pro0.7
Tau20.6
Gpqa0.6
Aime 250.4
Livecodebench0.4
Ifbench0.4
Scicode0.3
Lcr0.2
Terminalbench Hard0.1
Hle0.1
LLM Stats Category Scores
Physics90
Factuality90
General90
Biology90
Chemistry90
Code80
Math70
Reasoning70
Search40
Agents40
Vision20
Pricing
Input Price$0.2 / 1M tokens
Output Price$0.5 / 1M tokens
Blended Price (3:1)$0.275 / 1M tokens
Speed
Tokens/sec0.0
Time to First Token0.00s
Time to Answer0.00s
Provider Price Ranking
Provider Price Ranking
3 providers
Cheapest: xAIMost Expensive: Requesty
ProviderInputOutput
1xAICheapest
$0
$0
2ZenMux
$0.2
$0.5
3Requesty
$0.2
$0.5
Compare pricing across different API providers for this model.