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Goose vs Grok Code Fast 1

Bottom line

Goose is free, while Grok Code Fast 1 has a free plan plus paid upgrades. Goose is open source and Grok Code Fast 1 is not. You can run Goose on your own machine or server; Grok Code Fast 1 is hosted by the vendor.

Which one should you try?

Goose

Free

Best for Developers who want an open-source agent for file and shell tasks

Visit Goose See full review

Grok Code Fast 1

Freemium

Best for <cite index="1-4">Agentic coding workflows requiring fast loops of reasoning and tool calls</cite>

Visit Grok Code Fast 1 See full review

Pricing, capabilities and platforms side by side. Prices are as of the "Pricing checked" date in the table.

Goose

Goose

Goose is an open-source agent with a desktop app, CLI and API, MCP extensions and reusable recipes. We ran it on three tasks with a local 3B model and with Claude Opus 5.5.

Grok Code Fast 1

Grok Code Fast 1

<cite index="2-1">Released in late August 2025, the xAI Grok Code Fast 1 model is a coding-focused AI model that excels at common, high-volume coding task and is designed especially for agentic coding workflows.</cite> <cite index="1-6,1-7,1-8">Built from scratch with a brand-new model architecture, it was trained on a pre-training corpus rich with programming-related content, and curated high-quality datasets that reflect real-world pull requests and coding tasks.</cite> <cite index="1-23">The model is particularly adept at TypeScript, Python, Java, Rust, C++, and Go.</cite> <cite index="1-13">The model is generally available via the xAI API, priced at $0.20 / 1M input tokens, $1.50 / 1M output tokens, and $0.02 / 1M cached input tokens.</cite>

AttributeGooseGrok Code Fast 1
PricingFreeFreemium
Price—$30/month
Pricing checkedNot checked yetJun 11, 2026
Free trialNot stated0 days
Open sourceYesNo
Has APIYesYes
Self-hosted optionYesNo
PlatformsmacOS, Linux, Windows<cite index="30-1">Available through xAI API and integrated with launch partners including GitHub Copilot, Cursor, Cline, Roo Code, Kilo Code, opencode, and Windsurf</cite>
Languages—<cite index="1-23">TypeScript, Python, Java, Rust, C++, and Go</cite>
Released20252025-08-28
Pros
  • Passed 5 of 9 tasks with a 3B local model, the best of the three agents we tested.
  • Lowest token use with Claude Opus 5.5: about 7,800 tokens per task and $0.14 for all 9 runs.
  • A small fixed prompt (about 1,150 tokens), a tenth of Hermes Agent's.
  • Desktop app, CLI and API, with MCP extensions and recipes you can reuse.
  • <cite index="2-25,2-26">Massive throughput of approximately 90-100 tokens per second, delivering dozens of tool calls and edits before you finish reading its initial plan in IDE integrations</cite>
  • <cite index="1-13">Economical pricing at $0.20/1M input tokens and $1.50/1M output tokens</cite>
  • <cite index="2-27,2-28,2-29">Visible reasoning traces that provide real-time, summarized view of its reasoning process, helping developers catch logic errors early</cite>
  • <cite index="1-22">Prompt caching optimizations regularly achieving cache hit rates above 90% when used with launch partners</cite>
Cons
  • With a 3B model it got only 1 of 3 report summaries and 1 of 3 CSV counts right, so plan on a bigger model for real work.
  • It contacts models.dev on every run (it kept working when we blocked it).
  • Running Goose locally doesn't keep your data local by itself; that depends on the model provider and extensions you connect.
  • <cite index="6-31,6-34">Potential gaps in training on specific frameworks; poor performance on Tailwind CSS v3 tasks, suggesting possible smaller model size limitations</cite>
  • <cite index="6-36">Its reasoning model nature makes it unsuitable for interactive workflows requiring fast responses despite fast token throughput</cite>

Made up your mind?

Goose

Free

Best for Developers who want an open-source agent for file and shell tasks

Visit Goose See full review

Grok Code Fast 1

Freemium

Best for <cite index="1-4">Agentic coding workflows requiring fast loops of reasoning and tool calls</cite>

Visit Grok Code Fast 1 See full review

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Specs come from each tool's own site and docs (how we test). AIDiveForge is editorially independent.

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