OpenAI: GPT-5.1-Codex-Max
OpenAI: GPT-5.1-Codex-Max is an OpenAI general-purpose model for chat, reasoning, and tool-augmented applications at production scale. OpenAI: GPT-5.1-Codex-Max is an OpenAI general-purpose model for chat, reasoning, and tool-augmented applications at production scale. Supports tool use, vision (image), and implicit caching. Up to 400K context window.
- Tool Use
- Vision (Image)
- Implicit Caching
main.py
from openai import OpenAI client = OpenAI( base_url="https://api.respan.ai/api/", api_key="YOUR_RESPAN_API_KEY",) response = client.chat.completions.create( model="openrouter/openai/gpt-5.1-codex-max", messages=[{"role": "user", "content": "Hello!"}],)print(response.choices[0].message.content)from openai import OpenAI client = OpenAI( base_url="https://api.respan.ai/api/", api_key="YOUR_RESPAN_API_KEY",) response = client.chat.completions.create( model="openrouter/openai/gpt-5.1-codex-max", messages=[{"role": "user", "content": "Hello!"}],)print(response.choices[0].message.content)Providers
This model can be reached through several gateway routes. Copy a provider prefix from the table to target a specific host in your app. Read the gateway docs for routing and failover.
Similar
Other models from the same provider available through the gateway.
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