How much does o3-pro cost per month?

For a chatbot handling 10,000 requests a day with 1,000 input and 500 output tokens each, o3-pro costs about $18,000 per month at the provider's official prices (verified) ($20.00 per 1M input tokens, $80.00 per 1M output tokens).

Does o3-pro support prompt caching?

No cache read price is published for o3-pro.

How long is o3-pro's context window?

o3-pro accepts up to 200,000 tokens (200K) of context and returns up to 100,000 tokens per response.

Does o3-pro have a batch price?

Yes. Asynchronous batch requests cost $10.00 per 1M input tokens and $40.00 per 1M output tokens.

o3-pro API Pricing

OpenAI · released Jun 10, 2025 · 200K context · API model ID o3-pro

o3-pro by OpenAI API pricing: $20.00 per 1M input tokens and $80.00 per 1M output tokens (verified against the official pricing page, Oct 9, 2026).

Prices

o3-pro prices, USD per 1M tokens
Price	USD per 1M tokens
Input	$20.00
Output	$80.00
Cache read	Not published
Cache write	Not published
Batch input	$10.00
Batch output	$40.00

Verified against the provider's official pricing page on Oct 9, 2026. Official pricing page

Estimated monthly cost

$18,000

per month

per day: $600.00
per request: $0.06

Cost = input tokens × input price + output tokens × output price, 30 days a month. Cached input uses the cache read price. Cache write fees are not included.

Compare this workload across models

Monthly cost by workload

Workload	Per month
Chatbot1,000 in / 500 out tokens, 10,000 requests a day	$18,000/mo
RAG8,000 in / 500 out tokens, 5,000 requests a day	$30,000/mo
Coding agent50,000 in / 2,000 out tokens, 1,000 requests a day, 80% cached input	$34,800/mo

Context and capabilities

Context: 200,000 tokens
Max output: 100,000 tokens
Input: text, image
Output: text
Knowledge cutoff: May 2024
Open weights: No
Tool calling: Yes
Reasoning: Yes
Structured outputs: Yes

Capabilities and limits as listed by models.dev.

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Gemini 3.1 Pro Preview · $2.00 in / $12.00 out

Price history

No price changes since we started tracking on Oct 8, 2026.

Questions

How much does o3-pro cost per month?: For a chatbot handling 10,000 requests a day with 1,000 input and 500 output tokens each, o3-pro costs about $18,000 per month at the provider's official prices (verified) ($20.00 per 1M input tokens, $80.00 per 1M output tokens).
Does o3-pro support prompt caching?: No cache read price is published for o3-pro.
How long is o3-pro's context window?: o3-pro accepts up to 200,000 tokens (200K) of context and returns up to 100,000 tokens per response.
Does o3-pro have a batch price?: Yes. Asynchronous batch requests cost $10.00 per 1M input tokens and $40.00 per 1M output tokens.