Gemini 2.5 Flash vs GPT-5.1
Gemini 2.5 Flash costs 75% less at typical usage ($0.85 vs $3.44 per 1M tokens). GPT-5.1 scores higher on 11 of 11 tasks.
| Spec | Gemini 2.5 Flash | GPT-5.1 |
|---|---|---|
| Input /1M | $0.30 | $1.25 |
| Output /1M | $2.50 | $10.0 |
| Typical /1M | $0.85 | $3.44 |
| Context window | 1M | 400k |
| Speed | Blazing | Brisk |
| Privacy | Standard | Standard |
| Open weights | No | No |
Gemini 2.5 Flash
Steady since we started tracking (Jul 13, 2026)
GPT-5.1
Steady since we started tracking (Jul 13, 2026)
Quality by task
Coding84/94
Agents82/93
Reasoning85/96
Writing84/92
Chat88/93
Classify87/88
Extract87/89
Summarize88/91
Translate88/90
Vision90/94
General85/94
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Prices are list $/1M tokens, hand-maintained from public provider pricing. Task scores are benchmark-informed 0-100 estimates, not gospel — validate on your own evals before moving production traffic. Not affiliated with any model provider.