Commercial use

Claude Fable 5 是 Anthropic 推出的 Mythos 级高级通用模型,专为长周期编程、复杂的知识工作、视觉推理,以及需要更强规划与验证能力的多步骤任务而打造。

README

支持 Mythos 级推理、编程与视觉处理的 Claude Fable 5 API

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借助 Claude Fable 5 API 在长周期任务中实现持续推理
Claude Fable 5 API:高级代码理解与高质量实现
Claude Fable 5 API:安全防护、兜底机制与对齐评估
基准测试维度Claude Mythos 5 / Fable 5Claude Mythos 预览版Claude Opus 4.8GPT 5.5Gemini 3.1 Pro
Agentic coding SWE-Bench Pro80.30%77.80%69.20%58.60%54.20%
Agentic coding FrontierCode Diamond29.30%13.40%5.70%
Knowledge work GDPval-AA1932189017691314
Knowledge work vision GDP.pdf29.80%22.50%24.90%16.70%
Spatial reasoning Blueprint-Bench 238.60%14.50%36.20%26.50%
Tool use AutomationBench17.40%15.50%12.90%9.60%
Computer use OSWorld-Verified85.00%85.40%83.40%78.70%76.20%
Legal Legal Agent Benchmark13.30%10.40%2.10%0.00%
Multidisciplinary reasoning Humanity’s Last Exam, no tools59.0%*56.80%49.80%41.40%44.40%
Multidisciplinary reasoning Humanity’s Last Exam, with tools64.5%*64.70%57.90%52.20%51.40%
Biology BioMysteryBench, hard46.1%*29.60%40.00%
Biology BioMysteryBench, human solved83.9%*82.60%80.40%
Agentic coding Terminal-Bench 2.188.0%*82.70%83.40%70.70%
Cybersecurity ExploitBench(Cap%)78.0%*69.00%40.00%34.00%
Health HealthBench Professional66.0%*64.70%56.90%51.80%
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Kie.ai provides Claude Fable 5 API access inside a broader multi-model platform, making it easier for developers to evaluate advanced reasoning models without building a separate workflow for every provider. When a product needs different models for coding, document analysis, visual reasoning, agent workflows, or structured enterprise tasks, Kie.ai helps teams compare Claude Fable 5 API with other available models and decide where it fits best in the overall application.

Claude Fable 5 API Documentation on Kie.ai helps developers check the latest endpoint format, model name, request parameters, authentication method, input requirements, and response settings before implementation. For complex workflows involving long-context inputs, image or file-based context, structured outputs, and agent-style instructions, clear documentation can reduce integration friction and help teams move from testing to application development more efficiently.

Kie.ai supports credit-based testing for Claude Fable 5 API Pricing, giving developers a practical way to evaluate real prompts before scaling usage. Instead of presenting Claude Fable 5 API as completely free or unlimited, Kie.ai makes it easier to test coding tasks, document inputs, visual reasoning, long instructions, and agent-style prompts with available credits before deciding whether the model fits the project’s cost and performance expectations.

Kie.ai provides 24/7 support for developers working with Claude Fable 5 API, including questions around access, documentation, credits, testing, and integration setup. This is useful for advanced AI workflows where issues may involve long-context behavior, visual inputs, structured response formats, fallback-sensitive scenarios, or application-level debugging rather than simple prompt testing.