API pricing per million tokens
- Input
- $5
- per 1M, list
- Output
- $30
- per 1M tokens
- Cached input
- $0.5
- batch $2.5 / $15
- Context
- 1.05M
- 128K max output
Where to buy it (7)
OpenAIflex-50%$2.5 / $15cached $0.25
Azure AI Foundrydefault region$5 / $30cached $0.5
AWS Bedrockus-east-1+10%$5.5 / $33cached $0.55
Through a gateway
Your own numbers100M input and 20M output tokens a month: $1,100 direct.
Helicone$1,100+0%
Kong AI Gateway$1,100+0%
LiteLLM$1,100+0%
Vercel AI Gateway$1,100+0%
Google Vertex AI$1,100+0%
Databricks Mosaic AI$1,100+0%
Hugging Face Inference$1,100+0%
Cloudflare AI Gateway$1,155+5%
Requesty$1,155+5%
Eden AI$1,161+5.5%
OpenRouter$1,161+5.5%
Snowflake Cortex AI$1,320+20%
Martian Gatewayn/a
Portkeyn/a
TrueFoundry AI Gatewayn/a
IBM watsonx.ain/a
OCI Generative AIn/a
NVIDIA NIMn/a
Related models
Claude Fable 5.1Anthropic · 1M$10 / $50in / out per 1M$10$50$0.251MSep 1, 2026
About GPT-5.5
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.
Takes files, image, text in and returns text. First listed Apr 25, 2026. Blended price $11.3 per 1M tokens at 3 input to 1 output. Overall score 15 on leadersboard.fru.dev (rank 10).
Questions
How much does GPT-5.5 cost?
$5 per million input tokens and $30 per million output tokens, with cached input at $0.5, or $2.5 and $15 through the Batch API.
What is the context window of GPT-5.5?
1.05M tokens, with up to 128K tokens of output.
Where is GPT-5.5 cheapest?
Of 7 routes tracked, OpenAI is cheapest at $2.5 input and $15 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.