Chat model
GPT-5.3 Codex on Omnibo
GPT-5.3 Codex is a chat model from OpenAI, available on Omnibo from the Pro plan at 16,800 cr / M output tokens. It was added to the catalogue on 15 April 2026.
Provider
OpenAI
Cost
16,800 cr / M output tokens
Required plan
Pro
Added
2026-04-15
Model id gpt-5.3-codex · OpenAI terms for this model