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Model details

x-AI/Grok-Code-Fast 1

Grok Code Fast 1 is purpose-built as a reasoning model tuned for agentic coding tasks, meaning it is architected to handle multi-step software development workflows where the model needs to plan, execute, and adapt across complex, interconnected coding challenges. The visible reasoning traces embedded in its responses give developers a window into the model's decision-making process, allowing them to steer the output toward higher-quality results and catch missteps before they propagate. Its 256,000-token context window—among the largest available—enables the model to ingest and reason over entire codebases or multi-file projects simultaneously without truncation, making it especially well-suited for large-scale refactoring, feature implementation, and debugging tasks that require broad contextual awareness.

Performance data shows this model achieves meaningful scores in agentic capability benchmarks and coding-specific evaluations, reflecting its design focus on practical development assistance rather than general-purpose output. Benchmark figures indicate strong throughput and competitive latency metrics, supporting real-world use in time-sensitive coding environments. The availability of structured outputs, tool-calling capabilities, and temperature control gives developers fine-grained control over response behavior, while its compatibility with standard OpenAI-style APIs means it integrates into existing toolchains with minimal friction. Grok Code Fast 1's emergence in platforms like GitHub Copilot's free tier signals broad developer accessibility, and its balance of speed, reasoning transparency, and contextual depth positions it as a practical choice for individual developers and teams looking to automate complex coding workflows.

Qiniux-ai/grok-code-fast-1

Quick Info

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Provider
Qiniu
Model key
x-ai/grok-code-fast-1
Release date
Sep 2, 2025
Last updated
Sep 2, 2025
Input modalities
Output modalities
Capabilities

Limits

Output tokens
10,000 tokens
Context window
256,000 tokens

Latest news about x-AI/Grok-Code-Fast 1

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CoverageBenchmark

BenchmarkList aggregates a range of dated evaluation results for Grok Code Fast 1: an MCP-Universe overall success rate of 26.4% (73rd percentile, scored 2026-05-06), a Tau2-Bench Telecom success rate of 75.7% (71st percentile, 2026-06-10), a Terminal-Bench Hard success rate of 17.4% (63rd percentile, 2026-06-10), and The BenchmarkList page also lists pricing at $0.20 per million input tokens and $1.50 per million output tokens, matching the figures reported on AI/TLDR and Kilo Code, and presents a ranked comparison table against other models. Because several rows in the supplied excerpt reference apparently unrelated entities (e.g.

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