Verified 2026-04-24 · sourced from OpenAI
GPT-5.5 Pro Token Calculator, Pricing & 100K/1M Cost
Check OpenAI GPT-5.5 Pro pricing, estimate 100K and 1M token cost, and size a real API budget before you send a single request. Standard pricing is $30.00 per million input tokens and $180.00 per million output tokens with a 1M token context window.
Quick answer: GPT-5.5 Pro pricing per 1M tokens is $30.00 input and $180.00 output. Context window: 1,000,000 tokens.
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Context window
1,000,000 tokens
Input price
$30.00 / 1M
Output price
$180.00 / 1M
Cached input
Not published
Usage scenarios
Compare standard and cached pricing (where available) across common workloads.
| Scenario | Tokens in | Tokens out | Total tokens | Standard cost |
|---|---|---|---|---|
Quick chat reply Single user question with a short assistant answer | 650 | 220 | 870 | $0.0591 |
Coding assistant session Multi-turn pair programming exchange (≈6 turns) | 2,600 | 1,400 | 4,000 | $0.330 |
Knowledge base response Retrieval-augmented answer referencing multiple passages | 12,000 | 3,000 | 15,000 | $0.900 |
Near-max context run Large document processing approaching the 1M token limit | 880,000 | 120,000 | 1,000,000 | $48.00 |
Daily & monthly budgeting
Translate usage into predictable operating expenses across popular deployment sizes.
| Profile | Requests/day | Tokens/day | Daily cost | Monthly cost |
|---|---|---|---|---|
| Team pilot | 25 | 75,000 | $6.00 | $180.00 |
| Product launch | 100 | 500,000 | $37.50 | $1125.00 |
| Enterprise scale | 500 | 3,000,000 | $240.00 | $7200.00 |
Pricing notes
- OpenAI says gpt-5.5-pro will be released to the API soon for higher-accuracy work.
- Announced API pricing is $30.00 input and $180.00 output per 1M tokens.
- OpenAI does not currently publish a cached-input price for GPT-5.5 Pro.
- GPT-5.5 Pro API context has not been published separately; this row uses the announced 1M GPT-5.5 API context pending a model card.
Frequently asked questions
How much does GPT-5.5 Pro cost per 1,000 tokens?
At the published rates of $30.00 per million input tokens and $180.00 per million output tokens, a typical 1,000 token request (≈70% input, 30% output) costs about $0.0750.
What is the context window for GPT-5.5 Pro?
GPT-5.5 Pro supports up to 1,000,000 tokens (1M), allowing large prompts and retrieval-augmented payloads in a single call.
How fresh is the GPT-5.5 Pro pricing data?
Pricing is sourced from https://openai.com/index/introducing-gpt-5-5/ and was last verified on 2026-04-24. The calculator updates automatically when models.json is refreshed.
What is GPT-5.5 Pro API pricing per 1M tokens?
OpenAI announced GPT-5.5 Pro API pricing at $30.00 per million input tokens and $180.00 per million output tokens. Cached-input pricing has not been published for GPT-5.5 Pro.
Is GPT-5.5 Pro available in the API?
OpenAI says GPT-5.5 Pro is rolling out in ChatGPT for Pro, Business, and Enterprise users first, with API access planned soon.