Gemini 3.7 Flash vs GPT-5.1 Thinking: Specs & Benchmark Comparison

CharacteristicGemini 3.7 FlashGPT-5.1 Thinking
CompanyGoogleOpenAI
Release DateAugust 13, 2026November 11, 2025
Parameters
MultimodalYesYes
Context (input)1.0M256K
Context (output)66K128K
Input Price / 1M$0.75$3.00
Output Price / 1M$3.75$12.00
Average Score0.80.9

Verdict

Gemini 3.7 Flash leads in 3 out of 4 comparison categories.

Overall Performance

Both models show comparable average scores: Gemini 3.7 Flash — 0.8, GPT-5.1 Thinking — 0.9.

API Cost

Gemini 3.7 Flash is 3.3x cheaper: input $0.75/1M vs $3.00/1M tokens.

Context Window

Gemini 3.7 Flash supports a larger context: 1M vs 256K tokens.

Recency

Gemini 3.7 Flash is newer: released 8/13/2026 vs 11/11/2025.

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Frequently Asked Questions

Which is better for coding — Gemini 3.7 Flash or GPT-5.1 Thinking?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Gemini 3.7 Flash or GPT-5.1 Thinking?
Gemini 3.7 Flash is cheaper for input: $0.75 per 1M tokens vs $3.00.
Which has a larger context window — Gemini 3.7 Flash or GPT-5.1 Thinking?
Gemini 3.7 Flash supports a larger context: 1,000,000 tokens vs 256,000.

The Gemini 3.7 Flash and GPT-5.1 Thinking comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Gemini 3.7 Flash or GPT-5.1 Thinking page. See also the complete list of AI model comparisons.