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Model details
gpt-5.1-chat-latest
Positioned within the gpt-codex family, this model is offered as a chat-oriented endpoint with a 128,000-token context window and a 16,384-token maximum output, giving it room for long conversational transcripts, multi-document prompts, and multi-step reasoning chains. Its listed capabilities include attachments, reasoning, tool calling, structured output, and image input, indicating a design that supports agentic workflows where the model can both interpret visual material and invoke external functions. The combination of structured output and tool calling makes it suitable for pipelines that need to parse model responses into application-ready data or coordinate with external services.
In practical terms, the model is aimed at general-purpose chat, code generation assistance, and multimodal understanding tasks, drawing on the lineage of OpenAI's GPT series and o-series reasoning models. It supports advanced reasoning for complex multi-step problems and can accept image inputs alongside text, making it useful for tasks that mix visual and textual context, such as document analysis or interface-related questions. The proprietary API availability and standard token-based pricing put it in the same operational tier as other widely used commercial chat models, favoring teams that need a capable, general-purpose assistant with multimodal and tool-use features.
Quick Info
Powered by- Provider
- 302.AI
- Model key
- gpt-5.1-chat-latest
- Release date
- Nov 14, 2025
- Last updated
- Nov 14, 2025
- Knowledge cutoff
- 2024-09-30
- Input modalities
- Output modalities
- Capabilities
Cost
- Input token cost
- $1.25
- Output token cost
- $10.00
Limits
- Output tokens
- 16,384 tokens
- Context window
- 128,000 tokens