Gemini 2.5 Flash vs Grok 4.1 Fast
Grok 4.1 Fast costs 68% less at typical usage ($0.28 vs $0.85 per 1M tokens). Gemini 2.5 Flash scores higher on 10 of 11 tasks.
| Spec | Gemini 2.5 Flash | Grok 4.1 Fast |
|---|---|---|
| Input /1M | $0.30 | $0.20 |
| Output /1M | $2.50 | $0.50 |
| Typical /1M | $0.85 | $0.28 |
| Context window | 1M | 2M |
| Speed | Blazing | Fast |
| Privacy | Standard | Standard |
| Open weights | No | No |
Gemini 2.5 Flash
Steady since we started tracking (Jul 13, 2026)
Grok 4.1 Fast
Steady since we started tracking (Jul 13, 2026)
Quality by task
Coding84/82
Agents82/84
Reasoning85/84
Writing84/82
Chat88/86
Classify87/84
Extract87/84
Summarize88/85
Translate88/84
Vision90/84
General85/83
Price your own prompt against both
The free estimator ranks Gemini 2.5 Flash, Grok 4.1 Fast and every other catalog model by cost and quality for your exact workload.
Open the estimatorGet notified when either model's price changes
We watch the catalog for list-price changes. Opt in with just an email, no account, and unsubscribe in one click anytime.
Also compare Gemini 2.5 Flash
Also compare Grok 4.1 Fast
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.