GPT-5.5 is OpenAI's model priced at $5.00 per 1M input tokens and $30.00 per 1M output tokens, with a context window of about 400K tokens. Below are its full specs and how it stacks up against models from other providers on price and context.
GPT-5.5 pricing
| Token type | Price (per 1,000,000 tokens) |
|---|---|
| Input | $5.00 |
| Output | $30.00 |
| Cached input | $0.50 |
Source: official OpenAI pricing.
GPT-5.5 specifications
| Spec | Value |
|---|---|
| Vendor | OpenAI |
| Context window | 400K tokens |
| Input price | $5.00 / 1M tokens |
| Output price | $30.00 / 1M tokens |
| Cached input price | $0.50 / 1M tokens |
Compare GPT-5.5 with other models
Head-to-head pricing and spec comparisons against models from other providers:
Running GPT-5.5 in production? See its OpenAI rate limits and common error codes, or estimate spend with the token cost calculator.
Prices change often — these are as of June 2026. Context windows are approximate (some models offer larger beta/long-context tiers) — verify against provider docs. GPT counts are exact via the o200k tokenizer; Anthropic/Google/DeepSeek counts are estimates.