AI Chat — Unified LLM Gateway

AceDataCloud exposes two documented chat surfaces:

Endpoint	Use For
POST /aichat2/conversations	Recommended stateful / multimodal / agentic conversations
POST /aichat/conversations	Legacy conversation endpoint
POST /openai/chat/completions	OpenAI-compatible stateless chat completions
POST /openai/responses	OpenAI-compatible responses API

Setup: See authentication for token setup.

Quick Start

Recommended: stateful conversations

curl -X POST https://api.acedata.cloud/aichat2/conversations \
  -H "Authorization: ******ACEDATACLOUD_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"model":"gpt-4.1","question":"Summarize the latest release notes.","stateful":true}'

OpenAI-compatible SDK

from openai import OpenAI

client = OpenAI(
    api_key="your-token-here",
    base_url="https://api.acedata.cloud/openai"
)

response = client.chat.completions.create(
    model="gpt-5.5",
    messages=[{"role": "user", "content": "Explain quantum computing"}]
)
print(response.choices[0].message.content)

Currently Documented Model Families

The OpenAPI specs expose a broad, fast-moving model catalog. Representative current models include:

Family	Current examples
OpenAI / reasoning	gpt-5.6-luna, gpt-5.6-terra, gpt-5.6-sol, gpt-5.5, gpt-5.5-pro, gpt-5.4, gpt-5.4-pro, gpt-5.2, gpt-5.1, gpt-5, gpt-5-mini, gpt-5-nano, gpt-4.1, gpt-4.1-mini, gpt-4.1-nano, gpt-4o, gpt-4o-mini, o1, o3, o4-mini
OpenAI free-tier chat-completions	gpt-5.5:free, gpt-5:free, gpt-4.1:free, gpt-4o:free, gpt-4o-mini:free, gpt-oss:free
Claude	claude-fable-5, claude-opus-5, claude-sonnet-5, claude-opus-4-8, claude-opus-4-7, claude-opus-4-6, claude-opus-4-5-20251101, claude-sonnet-4-6, claude-sonnet-4-5-20250929, claude-sonnet-4-20250514, claude-haiku-4-5-20251001, claude-3-7-sonnet-20250219
Gemini	gemini-3.6-flash, gemini-3.5-flash, gemini-3.1-pro, gemini-3.1-pro-preview, gemini-3.1-flash-lite-preview, gemini-3-pro-preview, gemini-2.5-flash-lite, gemini-2.0-flash-lite
Grok	grok-4.5, grok-4, grok-4-0709, grok-3, grok-3-fast
DeepSeek	deepseek-v4-pro, deepseek-v4-flash, deepseek-r1, deepseek-r1-0528, deepseek-v3, deepseek-v3-250324, deepseek-v3.2-exp
Kimi	kimi-k3, kimi-k2.6, kimi-k2.5, kimi-k2-thinking-turbo, kimi-k2-thinking
GLM	glm-5.2, glm-5.1, glm-5, glm-5-turbo, glm-4.7, glm-4.6, glm-4.5, glm-4.5v, glm-3-turbo

/aichat2/conversations also accepts model_group values chatgpt, claude, gemini, grok, kimi, glm, and deepseek.

Image-generating models are not chat models. Names ending in -image (e.g. gemini-*-image, gpt-4o-image) are image-generation models and do not work on any chat surface listed above. Generate images through the dedicated endpoints instead — Gemini via POST /v1beta/models/{model}:generateContent, or /nano-banana/images.

OpenAI-Compatible Chat

POST /openai/chat/completions
{
  "model": "gpt-4.1",
  "messages": [{"role": "user", "content": "Write a haiku about observability."}],
  "stream": true,
  "tools": [
    {
      "type": "function",
      "function": {
        "name": "get_weather",
        "parameters": {"type": "object", "properties": {"location": {"type": "string"}}}
      }
    }
  ]
}

Common parameters:

Parameter	Type	Description
model	string	One of the documented OpenAI-compatible models
messages	array	Standard OpenAI chat message list
temperature / top_p	number	Sampling controls
max_tokens	integer	Output cap
stream	boolean	Enable SSE streaming
tools / tool_choice	array / string-object	Function-calling controls
service_tier	string	Processing tier (auto, default, flex, scale, priority)

Stateful / Agentic Conversations

POST /aichat2/conversations generalizes the legacy conversation API with multimodal user content, CRUD-style actions, and server-side conversation state.

POST /aichat2/conversations
{
  "action": "chat",
  "model": "claude-sonnet-4-6",
  "message": [
    {"type": "text", "text": "Describe this image."},
    {"type": "image_url", "image_url": {"url": "https://example.com/photo.jpg"}}
  ],
  "stateful": true,
  "allowed_skills": ["google-search"],
  "allowed_mcp_servers": ["mcp-google-search"]
}

Useful parameters:

Parameter	Type	Description
action	string	chat, retrieve, retrieve_batch, update, delete
model	string	Model name
question	string	Simple text prompt
message	string or array	Multimodal content using text, image_url, or file_url items
stateful	boolean	Keep conversation history server-side
references	array	Extra context documents
preset	string	Preset/system prompt
max_turns	integer	Trim retained turn history
allowed_skills / allowed_mcp_servers	array	Restrict tool-use scope
unattended_policy	object	Tool-use permission policy
tool_results	array	Return results for previously requested tool calls
model_group	string	Family selector (chatgpt, claude, gemini, grok, kimi, glm, deepseek)
offset / limit	integer	Pagination for retrieval actions
callback_url / async	string / boolean	Async execution

Gotchas

• The documented OpenAI-compatible routes live under /openai/*, not /v1/*.
• POST /aichat2/conversations is the recommended stateful endpoint; POST /aichat/conversations remains for legacy clients.
• message on /aichat2/conversations can be multimodal (text, image_url, file_url); plain question still works for simple text prompts.
• action on /aichat2/conversations is not chat-only — it also supports retrieve, retrieve_batch, update, and delete.
• Free-tier model variants such as gpt-5.5:free are documented on /openai/chat/completions.