OpenAI: GPT-5.5 Pro
OpenAI
OpenAI: GPT-5.5 Pro by OpenAI costs $30.00 per 1M input tokens and $180.00 per 1M output tokens, with a 1.1M-token context window.
Pricing
Input (per 1M tokens)
$30.00
Output (per 1M tokens)
$180.00
Cached input (per 1M)
—
| Provider | Input / 1M | Output / 1M |
|---|---|---|
| openrouter | $30.00 | $180.00 |
| OpenAI | $30.00 | $180.00 |
Specifications
- Provider
- OpenAI
- Context window
- 1.1M tokens
- Parameters
- —
- Released
- Apr 2026
- Open weights
- No
- Frontier model
- No
Benchmarks
Speed & latency
Time to first token
8.42s
Fastest host: openai (via vercel-ai-gateway).
Compare OpenAI: GPT-5.5 Pro with…
OpenAI: GPT-5.5 Pro vs OpenAI: GPT-5.6 Sol Pro$10.00/1MOpenAI: GPT-5.5 Pro vs OpenAI: GPT-6.1 Sol Pro$10.00/1MOpenAI: GPT-5.5 Pro vs OpenAI: GPT-6.1 Sol Pro (batch)$5.00/1MOpenAI: GPT-5.5 Pro vs OpenAI: GPT-6.1 Sol$10.00/1MOpenAI: GPT-5.5 Pro vs OpenAI: GPT-6.1 Sol (batch)$5.00/1MOpenAI: GPT-5.5 Pro vs OpenAI: GPT-6 Luna Pro$0.50/1M
FAQ
How much does OpenAI: GPT-5.5 Pro cost?
OpenAI: GPT-5.5 Pro is priced at $30.00 per 1M input tokens and $180.00 per 1M output tokens. Output tokens cost more than input.
What is OpenAI: GPT-5.5 Pro's context window?
OpenAI: GPT-5.5 Pro supports a context window of 1.1M tokens — the maximum prompt plus response length it can handle in a single request.
Is OpenAI: GPT-5.5 Pro open weight?
No — OpenAI: GPT-5.5 Pro is a closed/proprietary model accessed via API.
Data as of 2026-10-14. Source: Pricing via OpenRouter API, openrouter.ai. Pricing is per 1M tokens (USD); confirm with the provider before production use.