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GPT-6 Astra Pro API Pricing — $10.00/M input, $50.00/M output

Elite ultra-premium GPT-6: maximum compute for the hardest reasoning and research workflows.

Full specs, context window and API limits →

How much does GPT-6 Astra Pro cost per million tokens?

GPT-6 Astra Pro, from OpenAI, charges $10.00 per million input tokens and $50.00 per million output tokens — $20.00 per million blended at a 3:1 input:output ratio. That makes it pricier than GPT-6 Astra on a blended-token basis.

Verified 2026-09-26 — source
Input
$10.00/M
Output
$50.00/M
Blended
$20.00/M
Provider
Verified 2026-09-26 — source

How much does GPT-6 Astra Pro cost per 1,000 requests?

Computed from generated token pricing. Each row assumes the listed input and output tokens per request; this model has no measured verbosity factor, so the unadjusted output estimate is shown.

Request shapeInput tokensOutput tokensCost / 1,000 requests
Short10050$3.5000
Medium1,000500$35.0000
Long4,0002,000$140.0000

Formula: ((input price × input tokens) + (output price × output tokens × verbosity factor)) ÷ 1,000,000 × 1,000. Assumptions: short 100/50, medium 1,000/500, long 4,000/2,000 input/output tokens per request. Unadjusted — no measured verbosity factor is available.

How fast is GPT-6 Astra Pro?

Not yet measured — see the speed benchmark leaderboard for models we do track.

How much does GPT-6 Astra Pro cost at scale?

Tokens / monthEst. cost (blended 3:1)
100,000$2.00
1,000,000$20.00
10,000,000$200.00
100,000,000$2000.00

How does GPT-6 Astra Pro compare with other models?

GPT-5 Nano — $0.14/MGPT-6 Luna — $0.20/MGPT-6 Luna Pro — $0.20/MGPT-4o Mini — $0.26/MGPT-5.4 Nano — $0.46/MGPT-6 Astra — $20.00/MClaude Fable 5.1 — $20.00/MClaude Fable 5 — $20.00/M
See all OpenAI models →

What is GPT-6 Astra Pro best for?

#19 for Math & Reasoning#19 for Agents & Tool Use#20 for Long Documents & RAG
Looking for a cheaper option?
GPT-6 Luna is 99% cheaper — a drop-in migration. See all 8 alternatives to GPT-6 Astra Pro →

What are common questions about GPT-6 Astra Pro?

Is GPT-6 Astra Pro cheaper than GPT-6 Astra?

GPT-6 Astra Pro costs $20.00/M blended tokens, GPT-6 Astra costs $20.00/M — GPT-6 Astra is cheaper.

How much does 1 million tokens cost with GPT-6 Astra Pro?

At a 3:1 input:output ratio, 1 million blended tokens costs approximately $20.00. Pure input costs $10.00/M; pure output costs $50.00/M.

What does GPT-6 Astra Pro cost at high volume?

At 100 million blended tokens a month, GPT-6 Astra Pro costs approximately $2000.00. See the cost-at-scale table below for other volumes.

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