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Grok Code Fast 1

SpaceXAIReleased Aug 28, 2025Deprecated

Score basis

Grok Code Fast 1 is behind the leaders in factuality, long context, agentic tasks, coding, and instruction following. Too few results yet to rate reasoning, safety, math, multimodal tasks, or multilingual tasks.

Capability profile

Bars show the model's median result as a share of the leading model's, per capability. Select a row to see its results.

Limited5 capabilities
  1. Factuality−33.3%2 of 4
  2. Long Context−35.0%1 of 3
  3. Agentic−41.1%1 of 7
  4. Coding−41.7%4 of 10
  5. Instruction Following−44.5%1 of 3
Not rated5 capabilities

Too few results yet to rate Reasoning, Safety, Math, Multimodal or Multilingual.

Price

$0.20input$1.50outputper million tokens

From x-ai · All prices

Cheaper than 56% of 331 priced models · 3:1 input-to-output blend, log scale

Evidence

17results on17benchmarks

  • 1 independently verified
  • 15 aggregator
  • 1 vendor-reported

From 3 sources · latest Oct 8, 2026 · How verification works

API features

Tool callingStructured outputsReasoning

As listed by OpenRouter

Grok Code Fast 1 benchmark results

17 results on 17 benchmarks, grouped by capability. Each bar is the result as a share of the capability leader's; every result links to its source.

Factuality

LimitedFull factuality ranking

33.3% behind the leader2 of 4 ranked benchmarks measured

Long Context

LimitedFull long context ranking

35.0% behind the leader1 of 3 ranked benchmarks measured

Agentic

LimitedFull agentic ranking

41.1% behind the leader1 of 7 ranked benchmarks measured

Coding

LimitedFull coding ranking

41.7% behind the leader4 of 10 ranked benchmarks measured

Instruction Following

LimitedFull instruction following ranking

44.5% behind the leader1 of 3 ranked benchmarks measured

Reasoning

Not enough dataFull reasoning ranking

0 of 6 ranked benchmarks measured

More results

Benchmarks outside the capability baskets. They are not ranked against a leader.

Grok Code Fast 1: common questions

Who makes Grok Code Fast 1?

Grok Code Fast 1 is made by SpaceXAI.

When was Grok Code Fast 1 released?

Grok Code Fast 1 was released on Aug 28, 2025, according to Artificial Analysis.

What is Grok Code Fast 1 good at?

Grok Code Fast 1 is behind the leaders in factuality, long context, agentic tasks, coding, and instruction following. Too few results yet to rate reasoning, safety, math, multimodal tasks, or multilingual tasks.

How much does Grok Code Fast 1 cost?

Grok Code Fast 1 costs $0.20 per million input tokens and $1.50 per million output tokens, according to x-ai. At a mix of three input tokens to one output token, it is cheaper than 56% of the 331 priced models we track.

How many benchmarks has Grok Code Fast 1 been tested on?

We track 17 results for Grok Code Fast 1 on 17 benchmarks from 3 sources, 1 of them independently verified. The latest was recorded on Oct 8, 2026.

Which API features does Grok Code Fast 1 support?

OpenRouter lists tool calling, structured outputs, and reasoning for Grok Code Fast 1.

About this record

Where Grok Code Fast 1's numbers come from, and every name it appears under.

Tracked since
Apr 27, 2026
Newest source mention
May 2, 2026

Where the results come from

Verification: 17 scores · 1 independently verified · 15 aggregator-attributed · 1 vendor-reported. How these tiers are assigned

From 3 sources on 3 sites. Artificial Analysis supplies 15 of them; the 1 independently verified result comes from 1 site. Bars are coloured by trust tier.

  • artificialanalysis.ai15
  • api.llm-stats.com1
  • datasets-server.huggingface.co1