xAI model product
Grok Code Fast 1
Grok Code Fast 1 is a speedy and economical reasoning model that excels at agentic coding.
Updated Aug 17, 2026. Default version: Grok Code Fast 1
LLMBoard Score35.4Grok Code Fast 1
Coverage20%1 benchmark families
Context window256KTokens
Official input priceN/AOfficial price unavailable
Grok Code Fast 1 Capability Profile
This profile uses the model's current scored version. Arena ratings and prices are shown separately.
Grok Code Fast 1 Benchmark Results
Benchmark scores for Grok Code Fast 1.
Sort by
Benchmark | Score | Rank | Participants | Percentile | Evidence | Evaluated |
|---|
| BenchmarkSWE-Bench Verified | Score70.8% | Rank60 | Participants111 | Percentile46.4% | EvidenceC | Evaluated |
Grok Code Fast 1 Arena Results
Preference and agent-evaluation results for the default version.
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Arena | Category | Rank | Rating / score | Votes | Observations | Result date |
|---|
| Arenawebdev | Categoryoverall | Rank113 | Rating / score1164.4 | Votes783 | ObservationsN/A | Result date |
Grok Code Fast 1 Pricing
Official vendor API pricing appears first, followed by individual provider offers.
- Official API
- N/A
- Official provider
- N/A
- Lowest third-party
- From $0.18 input, $1.35 output per 1M via Jiekou.AI
- Tracked offerings
- 7
Sort by
Provider | Provider model ID | Region | Input / 1M | Output / 1M | Context | Updated |
|---|
| ProviderOpenCode Zen | Provider model IDgrok-code | Regionglobal | Input / 1MN/A | Output / 1MN/A | Context256K | Updated |
| ProviderJiekou.AI | Provider model IDgrok-code-fast-1 | Regionglobal | Input / 1M$0.18 | Output / 1M$1.35 | Context256K | Updated |
| ProviderHelicone | Provider model IDgrok-code-fast-1 | Regionglobal | Input / 1M$0.20 | Output / 1M$1.5 | Context256K | Updated |
| ProviderZenMux | Provider model IDx-ai/grok-code-fast-1 | Regionglobal | Input / 1M$0.20 | Output / 1M$1.5 | Context256K | Updated |
| ProviderFrogBot | Provider model IDgrok-code-fast-1 | Regionglobal | Input / 1M$0.20 | Output / 1M$1.5 | Context256K | Updated |
| ProviderPoe | Provider model IDxai/grok-code-fast-1 | Regionglobal | Input / 1M$0.20 | Output / 1M$1.5 | Context256K | Updated |
| ProviderAbacus | Provider model IDgrok-code-fast-1 | Regionglobal | Input / 1M$0.20 | Output / 1M$1.5 | Context256K | Updated |
Official prices use only the vendor's configured official Provider and positive standard USD PAYG rates. Third-party offers remain explicitly labeled.
Grok Code Fast 1 Runtime Performance
Provider-specific output speed and catalog latency for Grok Code Fast 1. Runtime does not affect the capability score.
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Provider | Output Speed | Catalog Latency | Max Input | Max Output | Updated |
|---|
| ProviderxAI | Output Speed76.41 tok/s | Catalog Latency1.38 s | Max Input256K | Max Output10K | Updated |
Output Speed is generated output tokens received per second. Catalog latency is reported separately from observed provider TTFT.
Grok Code Fast 1 Specifications
Technical details for the model's default version.
- Version
- Grok Code Fast 1
- Released
- Aug 28, 2025
- Knowledge cutoff
- Unknown
- Parameters
- N/A
- Context window
- 256K
- Max output
- 10K
- Inputs
- text
- Outputs
- text
- Open weights
- No
- License
- Proprietary
Grok Code Fast 1 Versions
Available versions of this model. The score column identifies the version used in the overall ranking.
Sort by
Version | Released | LLMBoard | Parameters | Context | Max output | Open weights | License |
|---|
| VersionGrok Code Fast 1 | Released | LLMBoard35.4 | ParametersN/A | Context256K | Max output10K | Open weightsNo | LicenseProprietary |
Grok Code Fast 1 vs nearby models
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What is Grok Code Fast 1?
Key information about Grok Code Fast 1 and its available data.
Grok Code Fast 1 is a speedy and economical reasoning model that excels at agentic coding. Built from scratch with a brand-new model architecture, it features a pre-training corpus rich with programming-related content and post-training datasets that reflect real-world pull requests and coding tasks.
The model has mastered the use of common tools like grep, terminal, and file editing, making it ideal for integration with IDEs. It is exceptionally versatile across the full software development stack and is particularly adept at TypeScript, Python, Java, Rust, C++, and Go.
Data as of 2026-08-17.
FAQ
Common questions about Grok Code Fast 1.
When was Grok Code Fast 1 released?
Grok Code Fast 1's default version was released on Aug 28, 2025.
How much does Grok Code Fast 1 cost?
No official standard PAYG price is currently available for Grok Code Fast 1. The lowest tracked third-party offer starts at $0.18 input and $1.35 output via Jiekou.AI.
Who created Grok Code Fast 1?
Grok Code Fast 1 was created by xAI.
What is the context window for Grok Code Fast 1?
The default version has a 256K token context window.
Is Grok Code Fast 1 open weight?
No. The default version is not marked as having publicly available weights.
How many API providers offer Grok Code Fast 1?
7 provider offerings are linked to the default version.
What models should I compare Grok Code Fast 1 with?
Nearby ranked alternatives include o1, Qwen3 Next 80B A3B, GPT-4.5.