GPT-5.5 pricing & benchmarks
Released Apr 24, 2026 · served by 2 providers · ranked #7 by intelligence in our index
What GPT-5.5 is
GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...
- Model ID:
openai/gpt-5.5 - Modality: text+image+file->text
- Knowledge cutoff: 2025-12-01
- Tool calling: supported · Structured output: supported
Providers and prices for GPT-5.5
The same model costs different amounts depending on who serves it. Prices are per 1M tokens, cheapest first. Uptime and throughput are OpenRouter's rolling measurements, not vendor claims.
| Provider | Input | Output | Context | Quant | Uptime 24h | Throughput |
|---|---|---|---|---|---|---|
| Azurecheapest | $5.50 | $33.00 | 1.1M | — | — | — |
| OpenAI | $12.50 | $75.00 | 1.1M | — | 97.4% | — |
GPT-5.5 benchmark results
Design Arena head-to-head results, as reported through the OpenRouter model API.
| Category | Arena | Rank | Elo | Win rate |
|---|---|---|---|---|
| gamedev | models | #4 | 1345 | 61.3% |
| svg | models | #6 | 1274 | 59.1% |
| agenticslides | agents | #7 | 1150 | 43.5% |
| agenticslides(python-pptx) | agents | #7 | 1155 | 45.2% |
| pptxslides | agents | #7 | 1157 | 45.3% |
| asciiart | models | #8 | 1286 | 60.8% |
| agentichtmlslides | agents | #9 | 1084 | 34.2% |
| agenticslides(html) | agents | #9 | 1077 | 33.2% |
| androidnative | agents | #9 | 1238 | 54.4% |
| godotgamedev | agents | #10 | 1216 | 53.2% |
| mobileapps | agents | #11 | 1222 | 51.2% |
| agenticgamedev | agents | #12 | 1185 | 51.6% |
| python-pptxslides | agents | #14 | 1152 | 43.3% |
| dataviz | models | #18 | 1281 | 56.4% |
| htmlslides | agents | #18 | 1086 | 34.2% |
| fullstack | agents | #19 | 1132 | 43.4% |
| codecategories | models | #20 | 1285 | 56% |
| uicomponent | models | #21 | 1291 | 56.4% |
| website | models | #22 | 1280 | 55.5% |
| webapps | agents | #25 | 1166 | 43.3% |
| 3d | models | #31 | 1253 | 52.6% |
Cheaper models in the same class
Models scoring within 4 points of GPT-5.5 on the Intelligence Index, but with a lower output price.
Compare GPT-5.5 head-to-head
FAQ
How much does the GPT-5.5 API cost?
$5.00 per 1M input tokens and $30.00 per 1M output tokens. A typical workload of 1M input + 300K output tokens costs about $14.00.
Is GPT-5.5 free?
No. It is a paid model starting at $5.00 per 1M input tokens, though some providers offer trial credits.
Which provider is cheapest for GPT-5.5?
Azure at $5.50 input / $33.00 output per 1M tokens.
Can I self-host GPT-5.5?
No. GPT-5.5 is closed-weight and only available through hosted APIs.