GPT-5.5
Flagshipby OpenAI
OpenAI's top model for complex reasoning.
At a glance
- Provider
- OpenAI
- Best for
- Flagship
- Reads images
- Yes
- Price
- from $50 / 1M tokens
- Subscription
- None — pay as you go
Benchmarks
Higher is better.
- GPQA Diamond· graduate-level reasoning
- 93.5%
- AA Coding Index· real-world coding (composite)
- 74.9%
Source: artificialanalysis.ai, as of 13 Aug 2026. Figures are publisher-reported where not independently verified.
Use GPT-5.5 without a subscription
On the GPQA Diamond graduate-level reasoning benchmark, GPT-5.5 scores 93.5%. anyAInow gives you GPT-5.5 alongside every other top AI model from a single balance — from $50 / 1m tokens, with no monthly fee and tokens that never expire. Start a chat on GPT-5.5, switch to another model mid-conversation, or run two models side by side to compare their answers. Top up from $5 and only pay for what you use.
Compare GPT-5.5
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