Gemini 2.5 Pro vs o1
2026 - Pricing, benchmarks, and use case comparison
Quick take
- •Gemini 2.5 Pro is 92% cheaper on input tokens - better for high-volume workloads.
- •Gemini 2.5 Pro has a 1M context window - 5x larger than o1's 200K. Better for long documents and large codebases.
Specs comparison
| Gemini 2.5 Pro | o1 | |
|---|---|---|
| Provider | Google DeepMind | OpenAI |
| Type | Closed source | Closed source |
| Context window | ✓1M | 200K |
| Input / 1M tokens | ✓$1.25 | $15.00 |
| Output / 1M tokens | $10.00 | $60.00 |
| Release date | 2025-03 | 2024-09 |
Benchmarks
| Benchmark | Gemini 2.5 Pro | o1 |
|---|---|---|
| GPQA Diamond | 86.4% | 78.3% |
| MMLU | 90.9% | - |
| SWE-bench Verified | 63.2% | 48.9% |
| HumanEval | - | 92.4% |
Scores sourced from official provider release posts.
Strengths
Gemini 2.5 Pro
- ✓Largest commercial context window (1M tokens)
- ✓Top benchmark scores on science and math
- ✓Strong multimodal: video, audio, images
- ✓Competitive pricing for the capability tier
- ✓Native Google Search and code execution tools
o1
- ✓Best-in-class math and physics
- ✓Strong competitive coding (Codeforces, HumanEval)
- ✓Scientific reasoning (GPQA top performer)
- ✓Multi-step logic and planning
- ✓200K context for long technical documents
Which should you choose?
Choose Gemini 2.5 Pro if you need...
- →Very long document analysis
- →Video and multimodal understanding
- →Scientific research tasks
- →Large codebase comprehension
Choose o1 if you need...
- →Math and science problems
- →Competitive programming
- →Complex multi-step reasoning
- →Research assistance