Gemini 2.5 Pro Preview 06-05 vs Grok Code Fast 1
Gemini 2.5 Pro Preview 06-05 and Grok Code Fast 1 are closely matched at 29.9 and 21.2 on the LLM Stats Score. Grok Code Fast 1 is 6.5x cheaper per token.
Google · xAI · Updated for 2026
Which is better?
Gemini 2.5 Pro Preview 06-05 and Grok Code Fast 1 are closely matched on the overall LLM Stats Score at 29.9 and 21.2.
In the 1 individual benchmarks reported for both models, Grok Code Fast 1 wins 1; this is a narrower head-to-head signal than the composite indexes.
On price, Grok Code Fast 1 is roughly 6.5x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Gemini 2.5 Pro Preview 06-05 also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Gemini 2.5 Pro Preview 06-05
- you process long inputs — it offers a 1,048,576 token context window
Choose Grok Code Fast 1
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- cost matters — it's about 6.5x cheaper per token
- you want the most recent training data — it shipped Aug 2025
At a glance
The differences that matter most.
Individual benchmarks
13 reported for Gemini 2.5 Pro Preview 06-05 · 1 for Grok Code Fast 1
Gemini 2.5 Pro Preview 06-05 outperforms in 0 benchmarks, while Grok Code Fast 1 is better at 1 benchmark (SWE-Bench Verified).
Grok Code Fast 1 significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Gemini 2.5 Pro Preview 06-05 ($1.25/1M tokens) is 6.3x more expensive than Grok Code Fast 1 ($0.20/1M tokens).
For output processing, Gemini 2.5 Pro Preview 06-05 ($10.00/1M tokens) is 6.7x more expensive than Grok Code Fast 1 ($1.50/1M tokens).
In conclusion, Gemini 2.5 Pro Preview 06-05 is more expensive than Grok Code Fast 1.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Gemini 2.5 Pro Preview 06-05 accepts 1,048,576 input tokens compared to Grok Code Fast 1's 256,000 tokens. Gemini 2.5 Pro Preview 06-05 can generate longer responses up to 65,535 tokens, while Grok Code Fast 1 is limited to 10,000 tokens.
Input capabilities
Documented input modalities across available providers
Gemini 2.5 Pro Preview 06-05 supports multimodal inputs, whereas Grok Code Fast 1 does not.
Gemini 2.5 Pro Preview 06-05 can handle both text and other forms of data like images, making it suitable for multimodal applications.
Gemini 2.5 Pro Preview 06-05
Grok Code Fast 1
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Gemini 2.5 Pro Preview 06-05 was released on 2025-06-05, while Grok Code Fast 1 was released on 2025-08-28.
Grok Code Fast 1 is 3 months newer than Gemini 2.5 Pro Preview 06-05.
Jun 5, 2025
1.2 years ago
Aug 28, 2025
1.0 years ago
2mo newerKnowledge Cutoff
When training data ends
Gemini 2.5 Pro Preview 06-05 has a documented knowledge cutoff of 2025-01-31, while Grok Code Fast 1's cutoff date is not specified.
We can confirm Gemini 2.5 Pro Preview 06-05's training data extends to 2025-01-31, but cannot make a direct comparison without Grok Code Fast 1's cutoff date.
Jan 2025
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Provider Availability
Gemini 2.5 Pro Preview 06-05 is available from Google. Grok Code Fast 1 is available from xAI.
Gemini 2.5 Pro Preview 06-05
Grok Code Fast 1
Outputs Comparison
Judge for yourself.
Run your own prompts against Gemini 2.5 Pro Preview 06-05 and Grok Code Fast 1 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Gemini 2.5 Pro Preview 06-05 vs Grok Code Fast 1.