All ModelschatClaude Fable 5.2

Claude Fable 5.2

by AnthropicPremium

Try on Kunya
chat

Claude Fable 5.2

Latest Fable — faster, clearer long-horizon agentic coding and research with 1M context; 20% lower list price vs Fable 5.1

Model ID:claude-fable-5-2

API Documentation

Generate chat completions with this model.

POST/api/v1/chat/completions
GET /api/v1/models?type=chat
Request body
{
  "model": "claude-fable-5-2",
  "messages": [
    {
      "role": "user",
      "content": "Hello!"
    }
  ],
  "stream": false,
  "thinking": true,
  "max_tokens": 4096
}
cURL example
curl -X POST https://kunya.ai/api/v1/chat/completions \
  -H "Authorization: Bearer kunya_YOUR_API_KEY" \
  -H "Content-Type: application/json"
  -d '{"model":"claude-fable-5-2","messages":[{"role":"user","content":"Hello!"}],"stream":false,"thinking":true,"max_tokens":4096}'

Notes

  • •OpenAI-compatible endpoint — works with any Kunya API key.
  • •Set `"stream": true` for server-sent events.
  • •Supports vision: pass image URLs in message content as `{ "type": "image_url", "image_url": { "url": "..." } }`.
  • •Supports tool calling via the `tools` parameter.

Pricing

Input$10.4 per 1M tokens
Output$52 per 1M tokens
Context Window1000K

Capabilities

Streaming Yes
Vision Yes
Reasoning Yes
Tool Use Yes
ProviderAnthropic
Try on Kunya

Rankings

Programming#1
Technology#1
Overall#1

Similar Models

Claude Opus 5

Anthropic

Previous Opus — prefer Claude Opus 5.5 for hardest reasoning and coding

API Documentation

Claude Sonnet 4.5

Anthropic

Previous smart model for complex agents and coding

API Documentation

Step 5 Preview

StepFun

StepFun flagship agentic MoE (27B active) — sparse experts, image & video input, tool use, 1M context

API Documentation

Claude Opus 5.5

Anthropic

Anthropic flagship Opus via OpenRouter — multi-step codebase work, code review, and long-horizon agentic tasks

API Documentation