API pricing per million tokens
- Input
- $1.75
- per 1M, list
- Output
- $14
- per 1M tokens
- Cached input
- $0.175
- no batch tier listed
- Context
- 400K
- 128K max output
Where to buy it (3)
Azure AI Foundrydefault region$1.75 / $14cached $0.175
OpenAI (list)the lab's own API$1.75 / $14cached $0.175
Through a gateway
Your own numbers100M input and 20M output tokens a month: $455.00 direct.
Helicone$455.00+0%
Kong AI Gateway$455.00+0%
LiteLLM$455.00+0%
Vercel AI Gateway$455.00+0%
AWS Bedrock$455.00+0%
Google Vertex AI$455.00+0%
Databricks Mosaic AI$455.00+0%
Hugging Face Inference$455.00+0%
Cloudflare AI Gateway$477.75+5%
Requesty$477.75+5%
Eden AI$480.02+5.5%
OpenRouter$480.02+5.5%
Snowflake Cortex AI$546.00+20%
Martian Gatewayn/a
Portkeyn/a
TrueFoundry AI Gatewayn/a
IBM watsonx.ain/a
OCI Generative AIn/a
NVIDIA NIMn/a
Related models
Claude Opus 5Anthropic · 1M$5 / $25in / out per 1M$5$25$0.51MJul 24, 2026
About GPT-5.3-Codex
GPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the frontier software engineering performance of GPT-5.2-Codex with the broader reasoning and professional knowledge capabilities of GPT-5.2.
Takes text, image, files in and returns text. First listed Mar 3, 2026. Blended price $4.81 per 1M tokens at 3 input to 1 output.
Questions
How much does GPT-5.3-Codex cost?
$1.75 per million input tokens and $14 per million output tokens, with cached input at $0.175.
What is the context window of GPT-5.3-Codex?
400K tokens, with up to 128K tokens of output.
Where is GPT-5.3-Codex cheapest?
Of 3 routes tracked, Azure AI Foundry is cheapest at $1.75 input and $14 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.