Gemini 3.6 Flash vs GPT-6 Astra

Price, context window & benchmark comparison

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Gemini 3.6 Flash

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

GPT-6 Astra

OpenAI
$10.00 / $50.00
Input / Output · per 1M tokens
Compare different models
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Verdict: Gemini 3.6 Flash is 13.3× cheaper than GPT-6 Astra on a typical 3:1 input/output mix. GPT-6 Astra scores higher on the Artificial Analysis Intelligence Index (52.7 vs 34). GPT-6 Astra has the larger context window (1.1M vs 1M).
Gemini 3.6 FlashGPT-6 Astra
Input price / 1M$0.75$10.00
Output price / 1M$3.75$50.00
Blended price (3:1)$1.50$20.00
Cached input / 1M$0.075$1.00
Context window1M1.1M
Max output66K128K
Intelligence index3452.7
Coding index69.276.9
Providers76
Best provider uptime (30m)99.9%100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-07-212026-09-04
Retirement——

Cost calculator

FAQ

Which is cheaper, Gemini 3.6 Flash or GPT-6 Astra?

Gemini 3.6 Flash is 13.3× cheaper than GPT-6 Astra on a typical 3:1 input/output mix.

Gemini 3.6 Flash vs GPT-6 Astra: which has a bigger context window?

Gemini 3.6 Flash: 1,048,576 tokens. GPT-6 Astra: 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 Astra ≈ $45,000.

More comparisons

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