Grok Code Fast 1
xAI • codigo
Grok Code Fast 1 is a speedy and economical reasoning model that excels at agentic coding. With reasoning traces visible in the response, developers can steer Grok Code for high-quality...
Specifications
Context Window
256K tokens
Input Price/1M
—
Output Price/1M
—
Parameters
—
Max Output
10K tokens
Benchmarks
Grok Code Fast 1 results on the main AI model evaluation benchmarks. Higher scores indicate better performance.
Agentic
| Benchmark | Score | Maximum | Methodology |
|---|---|---|---|
| Terminal-Bench Hard | 17.0 | 100.0 | — |
Coding
| Benchmark | Score | Maximum | Methodology |
|---|---|---|---|
| LiveCodeBench | 66.0 | 100.0 | Artificial Analysis official API |
| LiveBench Coding | 64.4 | 100.0 | Contamination-free benchmark with objective ground-truth answers |
| SciCode | 36.0 | 100.0 | — |
| AA Coding Index | 23.7 | 100.0 | Artificial Analysis official API |
Data Analysis
| Benchmark | Score | Maximum | Methodology |
|---|---|---|---|
| LiveBench Data Analysis | 49.0 | 100.0 | Contamination-free benchmark with objective ground-truth answers |
Knowledge
| Benchmark | Score | Maximum | Methodology |
|---|---|---|---|
| MMLU-Pro | 79.0 | 100.0 | — |
Language
| Benchmark | Score | Maximum | Methodology |
|---|---|---|---|
| LiveBench Language | 48.6 | 100.0 | Contamination-free benchmark with objective ground-truth answers |
Long Context
| Benchmark | Score | Maximum | Methodology |
|---|---|---|---|
| AA-LCR | 48.0 | 100.0 | — |
Math
| Benchmark | Score | Maximum | Methodology |
|---|---|---|---|
| LiveBench Math | 56.0 | 100.0 | Contamination-free benchmark with objective ground-truth answers |
| AA Math Index | 43.3 | 100.0 | Artificial Analysis official API |
| AIME 2025 | 43.0 | 100.0 | Artificial Analysis official API |
overall
| Benchmark | Score | Maximum | Methodology |
|---|---|---|---|
| LiveBench Global | 45.1 | 100.0 | Contamination-free benchmark with objective ground-truth answers |
| AA Intelligence Index | 21.6 | 100.0 | Artificial Analysis official API |
Reasoning
| Benchmark | Score | Maximum | Methodology |
|---|---|---|---|
| MMLU Pro | 79.3 | 100.0 | Artificial Analysis official API |
| GPQA Diamond | 73.0 | 100.0 | Artificial Analysis official API |
| LiveBench Reasoning | 42.3 | 100.0 | Contamination-free benchmark with objective ground-truth answers |
| IFBench | 41.0 | 100.0 | — |
| HLE | 8.0 | 100.0 | — |
Tool Use
| Benchmark | Score | Maximum | Methodology |
|---|---|---|---|
| Tau²-Bench | 76.0 | 100.0 | — |
Information
- Release date
- August 28, 2025
- Tool Calling
- ✅ Supported
- Vision
- ❌ Not supported
- Audio
- ❌ Not supported
Full Analysis: Grok Code Fast 1
What is Grok Code Fast 1?
Grok Code Fast 1 is an AI model developed by xAI, classified as a codigo model. It focuses on text processing and natural language generation. As a proprietary model, it is available via xAI's cloud API. With a context window of 256K tokens, it is suitable for processing long documents such as contracts, books, and complete codebases.
Pricing & Costs in 2026
Grok Code Fast 1 does not have public per-token pricing available at this time. Some models offer access via enterprise plans or research programs. Check xAI's official website for up-to-date availability and pricing.
Benchmarks & Performance
Grok Code Fast 1 was evaluated on 20 different benchmarks, covering categories like Agentic, Coding, Data Analysis, Knowledge, Language, Long Context, Math, overall, Reasoning, Tool Use. Results show moderate performance across available evaluations.
It's important to note that benchmarks measure specific aspects and don't capture the full user experience. Factors like instruction adherence, behavior in long conversations, and real-world task quality vary significantly between models and aren't always reflected in standard scores.
Recommended Use Cases
Grok Code Fast 1 specializes in codigo, offering advanced capabilities for creating and processing codigo content.
Comparison with Alternatives
In the 2026 AI model ecosystem, Grok Code Fast 1 competes directly with similarly capable models. xAI competes in this segment against OpenAI, Anthropic, Google, and Meta. The choice between models depends on the specific use case, budget, latency requirements, and need for features like multimodality and tool calling.
For a detailed side-by-side comparison, use our comparison tool or check the overall model ranking.
Frequently Asked Questions
What is Grok Code Fast 1?
Grok Code Fast 1 is a speedy and economical reasoning model that excels at agentic coding. With reasoning traces visible in the response, developers can steer Grok Code for high-quality...
How much does Grok Code Fast 1 cost?
Grok Code Fast 1 does not have public per-token pricing available at this time. Check xAI's official website for up-to-date information.
How does Grok Code Fast 1 compare with other models?
In available benchmarks, Grok Code Fast 1 scored: Terminal-Bench Hard: 17/100, LiveCodeBench: 66/100, LiveBench Coding: 64.44/100. See the full table above for a detailed comparison.
Is Grok Code Fast 1 open source?
No, Grok Code Fast 1 is a proprietary model from xAI. It is available via cloud API. For open source alternatives, check our open source model ranking.
What is Grok Code Fast 1 best for?
Grok Code Fast 1 excels at complex reasoning and problem solving. With its large context window, it handles long documents, codebases, and extended conversations. It supports tool calling for API integrations and automation.
Last updated: June 22, 2026 • View methodology →