Model
GPT-5.5 Pro
Highest-accuracy GPT-5.5 tier for slower, precision-heavy reasoning and coding
13 providersreleased knowledge cutoff 2025-12-01closed weights
$27.27
best input /M · Poe
$163.64
best output /M
1.05M
context window
128K
max output
Compare providers (sorted by listed input price)
| Provider | Input /M | Output /M | Cache read /M | Cache write /M | Context | Capabilities | Status | Updated |
|---|---|---|---|---|---|---|---|---|
| Poe openai/gpt-5.5-pro | $27.27 | $163.64 | — | — | 400K | reasoningtoolsno structuredvision | Apr 8, 2026 | |
| OrcaRouter openai/gpt-5.5-pro | $30 | $180 | — | — | 1.05M | reasoningtoolsstructuredvision | Apr 23, 2026 | |
| Impossibl openai/gpt-5.5-pro | $30 | $180 | $3 | — | 1.05M | reasoningtoolsstructuredvision | Apr 23, 2026 | |
| OpenRouter openai/gpt-5.5-pro | $30 | $180 | — | — | 1.05M | reasoningtoolsstructuredvision | Apr 23, 2026 | |
| CrossModel openai/gpt-5.5-pro | $30 | $180 | — | — | 1.05M | reasoningtoolsstructuredvision | Apr 23, 2026 | |
| OpenAI gpt-5.5-pro | $30 | $180 | — | — | 1.05M | reasoningtoolsstructuredvision | Apr 23, 2026 | |
| LLM Gateway openai/gpt-5.5-pro | $30 | $180 | — | — | 1.05M | reasoningtoolsno structuredvision | Apr 23, 2026 | |
| Cloudflare AI Gateway openai/gpt-5.5-pro | $30 | $180 | — | — | 1.05M | reasoningtoolsstructuredvision | Apr 23, 2026 | |
| FastRouter openai/gpt-5.5-pro | $30 | $180 | — | — | 1.05M | reasoningtoolsstructuredvision | Apr 23, 2026 | |
| ZenMux openai/gpt-5.5-pro | $30 | $180 | — | — | 1.05M | reasoningtoolsstructuredvision | Apr 23, 2026 | |
| Vercel AI Gateway openai/gpt-5.5-pro | $30 | $180 | — | — | 1M | reasoningtoolsstructuredvision | Apr 23, 2026 | |
| Eden AI openai/gpt-5.5-pro | $30 | $180 | $3 | — | 1.05M | reasoningtoolsstructuredvision | Apr 23, 2026 | |
| Kilo Gateway openai/gpt-5.5-pro | $30 | $180 | — | — | 1.05M | reasoningtoolsstructuredvision | Apr 23, 2026 |
Price badge
https://models.sutraworks.ai/badge/openai/gpt-5.5-pro.svgLive SVG, regenerated on every hourly sync — paste it into a README to always show the current cheapest listed price. Updates when prices change; no build step needed on your side.
Benchmarks
- BrowseComp ↗(accuracy)report ↗90.1
- Humanity's Last Exam ↗(accuracy)report ↗43.1
- Humanity's Last Exam ↗(accuracy)report ↗57.2
- FrontierMath ↗(accuracy)report ↗52.4
- FrontierMath ↗(accuracy)report ↗39.6
- GDPval(wins or ties)report ↗82.3
- GeneBench(accuracy)report ↗33.2
Prices are per million tokens (USD). “—” means the provider does not publicly list a price for this model. Data from models.dev; verify with the provider before purchasing.