Claude 5 Fable
Anthropic's most intelligent model, setting new standards in agentic coding, complex reasoning, and professional knowledge work.
AnthropicClaude 5 Fable
Claude Opus 4.8 is Anthropic's most capable generally available model to date. It is highly autonomous and performs exceptionally well on long-horizon agentic work, knowledge work, vision tasks, and memory tasks.
Ready to build with Claude 5 Fable?
Get Started FreeParameters & options
Controls reasoning depth. Higher effort improves quality but uses more tokens and is slower. Recommended: High for most tasks, Extra High or Max for the hardest coding and agentic work, Medium or Low for routine, latency-sensitive tasks.
Explore similar models
AnthropicClaude 5 Opus
Anthropic's most intelligent model, setting new standards in agentic coding, complex reasoning, and professional knowledge work.
AnthropicClaude 5 Sonnet
Anthropic's next-generation Sonnet model — the best combination of speed and intelligence, featuring a 1M token context window, adaptive thinking by default, and major gains in coding and agentic tasks.
AnthropicClaude 4.8 Opus
Anthropic's most intelligent model, setting new standards in agentic coding, complex reasoning, and professional knowledge work.
GoogleGemini 3.1 Pro
Google's frontier reasoning model delivering enhanced software engineering, agentic reliability, and multimodal intelligence across a 1M-token context window.
OpenAIGPT‑5.2 Pro
The most capable model series yet for professional knowledge work.
MetaMuse Spark 1.1
Meta's multimodal model for agentic and coding work, supporting text, image, video, and PDF input with a 1M+ token context window.
Start building with Claude 5 Fable
No API keys required. Create AI-powered workflows with Claude 5 Fable in minutes — free.