Claude Haiku 4.5 vs Grok Code Fast 1 Comparison

Comparing Claude Haiku 4.5 and Grok Code Fast 1 across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Claude Haiku 4.5 outperforms in 1 benchmarks (SWE-Bench Verified), while Grok Code Fast 1 is better at 0 benchmarks.

Claude Haiku 4.5 significantly outperforms across most benchmarks.

Tue Mar 17 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Grok Code Fast 1 costs less

For input processing, Claude Haiku 4.5 ($1.00/1M tokens) is 5.0x more expensive than Grok Code Fast 1 ($0.20/1M tokens).

For output processing, Claude Haiku 4.5 ($5.00/1M tokens) is 3.3x more expensive than Grok Code Fast 1 ($1.50/1M tokens).

In conclusion, Claude Haiku 4.5 is more expensive than Grok Code Fast 1.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers

Tue Mar 17 2026 • llm-stats.com

Claude Haiku 4.5

Input tokens$1.00

Output tokens$5.00

Best providerAnthropic

Grok Code Fast 1

Input tokens$0.20

Output tokens$1.50

Best providerxAI

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Context Window

Maximum input and output token capacity

Grok Code Fast 1 accepts 256,000 input tokens compared to Claude Haiku 4.5's 200,000 tokens. Claude Haiku 4.5 can generate longer responses up to 64,000 tokens, while Grok Code Fast 1 is limited to 10,000 tokens.

Claude Haiku 4.5

Input200,000 tokens

Output64,000 tokens

Grok Code Fast 1

Input256,000 tokens

Output10,000 tokens

Tue Mar 17 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude Haiku 4.5 supports multimodal inputs, whereas Grok Code Fast 1 does not.

Claude Haiku 4.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Haiku 4.5

Text

Images

Audio

Video

Grok Code Fast 1

Text

Images

Audio

Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Claude Haiku 4.5

Proprietary

Closed source

Grok Code Fast 1

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Haiku 4.5 was released on 2025-10-15, while Grok Code Fast 1 was released on 2025-08-28.

Claude Haiku 4.5 is 2 months newer than Grok Code Fast 1.

Claude Haiku 4.5

Oct 15, 2025

5 months ago

1mo newer

Grok Code Fast 1

Aug 28, 2025

6 months ago

Knowledge Cutoff

When training data ends

Claude Haiku 4.5 has a documented knowledge cutoff of 2025-02-01, while Grok Code Fast 1's cutoff date is not specified.

We can confirm Claude Haiku 4.5's training data extends to 2025-02-01, but cannot make a direct comparison without Grok Code Fast 1's cutoff date.

Claude Haiku 4.5

Feb 2025

Grok Code Fast 1

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Provider Availability

Claude Haiku 4.5 is available from Anthropic. Grok Code Fast 1 is available from xAI. The availability of providers can affect quality of the model and reliability.