Gemini 3.6 Flash vs GPT-6.1 Terra Pro

Price, context window & benchmark comparison

Google

Gemini 3.6 Flash

Google
$0.75 / $3.75
Input / Output · per 1M tokens
VS
OpenAI

GPT-6.1 Terra Pro

OpenAI
$1.00 / $5.00
Input / Output · per 1M tokens
Compare different models
Google
OpenAI
Verdict: Gemini 3.6 Flash is 25% cheaper than GPT-6.1 Terra Pro on a typical 3:1 input/output mix. GPT-6.1 Terra Pro has the larger context window (1.1M vs 1M).
Gemini 3.6 FlashGPT-6.1 Terra Pro
Input price / 1M$0.75$1.00
Output price / 1M$3.75$5.00
Blended price (3:1)$1.50$2.00
Cached input / 1M$0.075$0.05
Context window1M1.1M
Max output66K128K
Intelligence index——
Coding index69.2—
Providers76
Best provider uptime (30m)100.0%100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-07-212026-10-26
Retirement——

Cost calculator

FAQ

Which is cheaper, Gemini 3.6 Flash or GPT-6.1 Terra Pro?

Gemini 3.6 Flash is 25% cheaper than GPT-6.1 Terra Pro on a typical 3:1 input/output mix.

Gemini 3.6 Flash vs GPT-6.1 Terra Pro: which has a bigger context window?

Gemini 3.6 Flash: 1,048,576 tokens. GPT-6.1 Terra Pro: 1,050,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Gemini 3.6 Flash ≈ $3,375, GPT-6.1 Terra Pro ≈ $4,500.

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