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Developers can deploy agents on hosted infrastructure or their own servers, with built-in evals to measure changes.
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The Agent SDK is now available. Define agents as code, with prompts in Markdown and tools in TypeScript. Deploy them on our hosted infrastructure, or run them on your own. Built-in evals let you measure every change and make your agents better over time.Read original on X
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The SDK bundles text, voice, image and video with server-side tools including real-time X search, code execution and remote MCP.
Users report moving agentic coding workflows from Fable 5.1 to Opus 5.5, with one demo building a 277k-gate simulated…