Everyday work
GPT 6.1 Sol
Strong performance. A lighter footprint.
OPENCODEX PLATFORM
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Create an account →Recommended models
Explore capabilities, specifications, and model guides.
Complex reasoning
GPT 6 Astra
For your most demanding work.
Long-running tasks
Claude Opus 5.5
Thoughtful work, from start to finish.
Speed & efficiency
GPT 6 Luna
Small tasks. Big possibilities.
BUILD WITH OPENCODEX CLOUD
Your next idea starts here.
Connect your application with an API key, or explore models in the Playground. Your keys, usage, and credits stay in one place.
Create an API key ↗PythonResponses API
import os from openai import OpenAI client = OpenAI( base_url="https://open-codex.app/v1", api_key=os.environ["OPENCODEX_API_KEY"], ) response = client.responses.create( model="MODEL_ID", input="Help me build something new.", ) print(response.output_text)View the quickstart →
Playground ↗
Explore prompts, compare responses, and inspect your requests.
Desktop workspace ↗
A home for your code, models, and ideas.
Pricing & credits ↗
See model prices and manage your Cloud spending.