AI Text APIs

AI Text APIs on HiAPI

HiAPI exposes text models through OpenAI-compatible endpoints while keeping the same account API key used for media generation.

Model	Endpoint	Best for	Key capabilities
GPT-6 Astra	POST /v1/responses · streaming only	Reasoning, code review, function workflows	low/medium/high/xhigh/max reasoning, strict JSON Schema, function calls
Claude Sonnet 4.6	POST /v1/chat/completions	Text conversations, coding, and tool workflows	Streaming and OpenAI-compatible tools
Kimi K3	POST /v1/chat/completions	Long-context reasoning, coding, and tool workflows	1M context, low/high/max reasoning, streaming, JSON, tools
DeepSeek V4.1 Flash	POST /v1/responses + Chat	Text and image input, reasoning	none/low/high/max, SSE
DeepSeek V4 Pro	POST /v1/responses + Chat compatible	Complex reasoning, coding Agents, long context	1M context, 384K max output, none/low/high/max reasoning, JSON, tools
DeepSeek V4 Flash Vision Exp	POST /v1/responses + Chat compatible	Image understanding, visual questions, function tools	1,048,576 context, 262,144 output limit, none/low/medium/high reasoning, JSON
DeepSeek V4 Flash	POST /v1/chat/completions	High-throughput generation, reasoning, coding, Agent workflows	1M context, streaming, high/max reasoning, JSON mode, tool calls
GLM-5.3	POST /v1/chat/completions	Text generation through an OpenAI-compatible endpoint	See the model page for the current request contract

Choose the protocol first

• New Agent and Codex workflows: POST /v1/responses when listed on the model page.
• Existing chat clients: compatible POST /v1/chat/completions.
• Image, video, and audio generation: asynchronous POST /v1/tasks.

Use live pricing for current input, output, and cached-input Token rates.

Get a HiAPI API key or start with the Responses guide. Existing clients can continue with Chat Completions.