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OpenAI: GPT-5 Pro (batch) API Pricing

OpenAI: GPT-5 Pro (batch) costs $7.50 per 1M input tokens and $60.00 per 1M output tokens. Context window: 400K. Prices verified 2026-10-21 · source

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Alternatives to consider

🏠 Same provider
OpenAI: gpt-oss-20b
$0.018 in / $0.090 out
Quality score: 10

Cheapest openai model — 100% less per month

Price history
2026-08-23 → 2026-10-21 · 59 daily snapshots
inputoutput

Rebuilt daily from our snapshot archive — the chart appears once a model has 5+ snapshots of history.

Pricing behavior
Stable — no price moves across our 59 daily snapshots (2026-08-23 → 2026-10-21).

From our own daily snapshot archive — independent of provider announcements.

Input / 1M tokens
$7.50
Output / 1M tokens
$60.00
Context window
400K
Max output
128K

Token economics

Token typePricevs base input
Standard input$7.50—
Output$60.00—
Web search tool$10/1k searches—

Prompt caching stores repeated context server-side: reads cost far less, but writes carry a one-time premium.

Reasoning behavior
Mode: Always on (mandatory)
Effort levels:high

Higher effort = deeper thinking = more reasoning tokens billed as output.

Knowledge cutoff
2024-09-30

Training data ends here — newer events require retrieval or web search.

What would OpenAI: GPT-5 Pro (batch) cost you per month?

WorkloadRequests/moAvg tokens (in/out)Est. monthly cost
Light chatbot10,000800 / 400$300.00
Coding agent5,0008,000 / 2,000$900.00
RAG pipeline30,0004,000 / 500$1800.00
Doc summarizer2,00020,000 / 1,000$420.00

Estimates use list prices without prompt caching. Caching can cut input cost by up to 90% on repeated context.

About OpenAI: GPT-5 Pro (batch)

GPT-5 Pro is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and...

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Frequently asked questions

How much does OpenAI: GPT-5 Pro (batch) cost?

OpenAI: GPT-5 Pro (batch) costs $7.50 per 1M input tokens and $60.00 per 1M output tokens. Verified 2026-10-21 — provider source.

What is the context window?

400K tokens, with up to 128K output tokens per response. That's roughly 500 pages of text in a single request.

Does it support prompt caching?

Prompt-caching pricing is not published for this model via OpenRouter.

What's a cheaper alternative?

ScaleDown: Summarize saves about 99% on a typical workload with comparable quality.

Official resources