API pricing per million tokens
- Input
- $30
- per 1M, list
- Output
- $180
- per 1M tokens
- Cached input
- n/a
- batch $15 / $90
- Context
- 1.05M
- 128K max output
Where to buy it (2)
OpenAIflex-50%$15 / $90$33.8 blended
Through a gateway
Your own numbers100M input and 20M output tokens a month: $6,600 direct.
Helicone$6,600+0%
Kong AI Gateway$6,600+0%
LiteLLM$6,600+0%
Vercel AI Gateway$6,600+0%
AWS Bedrock$6,600+0%
Azure AI Foundry$6,600+0%
Google Vertex AI$6,600+0%
Databricks Mosaic AI$6,600+0%
Hugging Face Inference$6,600+0%
Cloudflare AI Gateway$6,930+5%
Requesty$6,930+5%
Eden AI$6,963+5.5%
OpenRouter$6,963+5.5%
Snowflake Cortex AI$7,920+20%
Martian Gatewayn/a
Portkeyn/a
TrueFoundry AI Gatewayn/a
IBM watsonx.ain/a
OCI Generative AIn/a
NVIDIA NIMn/a
Related models
About GPT-5.5 Pro
GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads.
Takes files, image, text in and returns text. First listed Apr 25, 2026. Blended price $67.5 per 1M tokens at 3 input to 1 output. Overall score 5 on leadersboard.fru.dev (rank 25).
Questions
How much does GPT-5.5 Pro cost?
$30 per million input tokens and $180 per million output tokens, or $15 and $90 through the Batch API.
What is the context window of GPT-5.5 Pro?
1.05M tokens, with up to 128K tokens of output.
Where is GPT-5.5 Pro cheapest?
Of 2 routes tracked, OpenAI is cheapest at $15 input and $90 output per million tokens.
List prices from providers' pages on the date shown; your contract may differ. Logos via logo.dev; trademarks belong to their owners.