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Anthropic

Claude Fable 5.1

anthropic/claude-fable-5-1
Try in Agents

Anthropic's most capable model — demanding reasoning and long-horizon agentic work, with 1M context

reasoningvisioncaching
Specs
Context
1M
Max output
128K
Provider
Anthropic
Input
$10.00/ 1M tokens
Output
$50.00/ 1M tokens
Cache read
$0.250/ 1M tokens
Cache write
$12.50/ 1M tokens
Try it
Chat with Claude Fable 5.1Terramind API
⌘+Enter to run
Code
import { streamText } from "ai";
import { createOpenAICompatible } from "@ai-sdk/openai-compatible";

const terramind = createOpenAICompatible({
  name: "terramind",
  baseURL: "https://terramind.com/api/v1",
  apiKey: process.env.TERRAMIND_API_KEY!,
});

const result = streamText({
  model: terramind("claude-fable-5-1"),
  prompt: "Why is the sky blue?",
});

for await (const chunk of result.textStream) {
  process.stdout.write(chunk);
}

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