Grok 4 Fast API Pricing 2026
Compare pricing, benchmarks, and providers for Grok 4 Fast. Find the best value for your use case.
Get our weekly newsletter on pricing changes, new releases, and tools.
Overview
Grok 4 Fast was released on September 19, 2025. Pricing starts at $0.200 per million input tokens and $0.500 per million output tokens. The model supports a context window of up to 2.0M tokens. API access is available through Xai.
Pricing Comparison
Compare Grok 4 Fast with 0 similar models by price.
Current Pricing (per 1M tokens)
1 models
Provider | Model | Input $/M | Output $/M | Coding | MMLU | GPQA | Context | Actions |
|---|---|---|---|---|---|---|---|---|
X | $0.200 | $0.500 | 40.1 | 73.0 | 60.6 | 2,000,000 |
* Some models use tiered pricing based on prompt length. Displayed prices are for prompts ≤ 200k tokens.
Compare Providers
Grok 4 Fast is available from multiple providers with different pricing and availability.
No multi-provider data available for this model
This model may only be available from a single provider
Community Rankings
How does Grok 4 Fast perform? Vote based on your experience.
Cost vs. Quality
Compare Grok 4 Fast's benchmark performance against all models.
Detailed Benchmark Scores
| Benchmark | Standard | Thinking |
|---|---|---|
| Intelligence | 23.1 (56th) | 35.1 (64th) |
| Coding | 19.0 (52th) | 27.4 (51th) |
| Math | 41.3 (42th) | 89.7 (74th) |
| MMLU Pro | 73.0 (44th) | 85.0 (69th) |
| GPQA | 60.6 (48th) | 84.7 (82th) |
| LiveCodeBench | 40.1 (45th) | 83.2 (85th) |
| AIME | - | - |
| Aider | - | - |
Try Grok 4 Fast
Use our Calculator
Estimate your costs based on expected token usage.
Open Cost CalculatorTry in Playground
Test Grok 4 Fast directly in your browser.
Open PlaygroundCompare Grok 4 Fast
Similar Price Range
Same Provider
Popular Competitors
Frequently Asked Questions
All Xai Models
See pricing for all Xai models.
View all Xai models →