Claude Opus 5 vs Gemini 3.1 Pro Preview
Price, context and benchmark scores side by side — every number from the live model catalogue.
| Claude Opus 5anthropic | Gemini 3.1 Pro Previewgoogle | |
|---|---|---|
| Input / 1M tokens | $5.00 | $2.00 |
| Output / 1M tokens | $25.00 | $12.00 |
| 1M in + 300K out | $12.50 | $5.60 |
| Context window | 1M | 1.0M |
| Intelligence index | 60.7 | 46.5 |
| Coding index | 78.0 | 68.8 |
| Agentic index | 55.3 | 21.4 |
| Cheapest provider | Claude Platform on AWS | |
| Providers serving it | 5 | 2 |
| Weights | Closed | Closed |
| Image input | Yes | Yes |
| Tool calling | Yes | Yes |
| Reasoning mode | Yes | Yes |
| Released | Jul 24, 2026 | Feb 19, 2026 |
Which one to pick
Pick Claude Opus 5 if…
- You want the higher general-intelligence score (60.7).
- Code quality is the priority — it leads on the coding index (78.0).
- You are running agent loops — higher agentic index (55.3).
- You want provider redundancy: 5 providers serve it.
Pick Gemini 3.1 Pro Preview if…
- Token cost matters: $12.00 per 1M output vs $25.00.
- You need the bigger context window (1.0M).
FAQ
Is Claude Opus 5 better than Gemini 3.1 Pro Preview?
Claude Opus 5 scores higher on general intelligence (60.7 vs 46.5), while Gemini 3.1 Pro Preview is 2.1× cheaper per output token ($12.00 vs $25.00). For code, Claude Opus 5 leads (78.0 coding index). Gemini 3.1 Pro Preview takes the larger context at 1.0M.
Which is cheaper, Claude Opus 5 or Gemini 3.1 Pro Preview?
Gemini 3.1 Pro Preview, at $12.00 per 1M output tokens versus $25.00. On a 1M input + 300K output workload that is $5.60 against $12.50.
Can I self-host Claude Opus 5 or Gemini 3.1 Pro Preview?
Claude Opus 5: closed weights, API only. Gemini 3.1 Pro Preview: closed weights, API only.