Gemini 2.5 Pro vs Grok Code Fast 1
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
Gemini 2.5 Pro
70.9Google · Mar 2025
Google's 2025 workhorse flagship — first mainstream thinking model with a 1M context, still widely deployed.
Grok Code Fast 1
xAI · Aug 2025
A speed-first coding model built for agentic IDE loops, popular as a cheap fast tier in Cursor and similar tools.
The verdict
Grok Code Fast 1 wins 1 of the 1 benchmarks these models share, against 0 for Gemini 2.5 Pro. On price the gap is dramatic: Grok Code Fast 1 works out roughly 6.5x cheaper per blended million tokens. Gemini 2.5 Pro also takes 1.0M of context versus 256K for Grok Code Fast 1.
Benchmark head-to-head 0–1
Specs & pricing
| Gemini 2.5 Pro | Grok Code Fast 1 | |
|---|---|---|
| modhub Index | 70.9 | — |
| Input price / 1M | $1.25 | $0.2 |
| Output price / 1M | $10 | $1.5 |
| Context window | 1.0M | 256K |
| Max output | 66K | — |
| Open weights | no | no |
| Reasoning model | yes | yes |
| Multimodal input | text, image, audio, video | text |
| Knowledge cutoff | Jan 2025 | Aug 2025 |
| Released | Mar 2025 | Aug 2025 |
| Example monthly cost* | $27.50 | $4.25 |
* 10M input + 1.5M output tokens per month at list prices, no caching. Green = better value on that row.
Frequently asked questions
- Which is better, Gemini 2.5 Pro or Grok Code Fast 1?
- Grok Code Fast 1 wins 1 of the 1 benchmarks these models share, against 0 for Gemini 2.5 Pro. On price the gap is dramatic: Grok Code Fast 1 works out roughly 6.5x cheaper per blended million tokens. Gemini 2.5 Pro also takes 1.0M of context versus 256K for Grok Code Fast 1.
- Which is cheaper, Gemini 2.5 Pro or Grok Code Fast 1?
- Gemini 2.5 Pro costs $1.25/$10 per million input/output tokens, while Grok Code Fast 1 costs $0.2/$1.5. For a typical workload of 10M input and 1.5M output tokens per month, that's $27.50 versus $4.25.
- Which model is better for coding, Gemini 2.5 Pro or Grok Code Fast 1?
- On SWE-bench Verified — the standard agentic-coding benchmark — Grok Code Fast 1 scores 70.8% versus 63.8% for Gemini 2.5 Pro, making Grok Code Fast 1 the stronger pick for coding agents.
More comparisons
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