GPT-5 Mini vs GPT-6 Astra

Price, context window & benchmark comparison

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GPT-5 Mini

OpenAI
$0.25 / $2.00
Input / Output · per 1M tokens
VS
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GPT-6 Astra

OpenAI
$10.00 / $50.00
Input / Output · per 1M tokens
Compare different models
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Verdict: GPT-5 Mini is 29.1× 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 16.8). GPT-6 Astra has the larger context window (1.1M vs 400K).
GPT-5 MiniGPT-6 Astra
Input price / 1M$0.25$10.00
Output price / 1M$2.00$50.00
Blended price (3:1)$0.69$20.00
Cached input / 1M$0.025$1.00
Context window400K1.1M
Max output128K128K
Intelligence index16.852.7
Coding index15.676.9
Providers6
Best provider uptime (30m)100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2025-08-072026-09-04
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FAQ

Which is cheaper, GPT-5 Mini or GPT-6 Astra?

GPT-5 Mini is 29.1× cheaper than GPT-6 Astra on a typical 3:1 input/output mix.

GPT-5 Mini vs GPT-6 Astra: which has a bigger context window?

GPT-5 Mini: 400,000 tokens. GPT-6 Astra: 1,050,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GPT-5 Mini ≈ $1,500, GPT-6 Astra ≈ $45,000.

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