📖 The AI Tool Bible

Claude Agent SDK vs Gorilla

A side-by-side look at pricing, capabilities, pros, cons, and our editorial scores.

 
Claude Agent SDK
Agents
Gorilla
Agents
TaglineAnthropic's official SDK for building autonomous Claude agents.Open-source LLM purpose-built for function calling and API invocation across thousands of tools.
CategoryAgentsAgents
PricingFree· Free SDK; API usage billed at Claude ratesFree· Free and Apache 2.0; self-hosted
ModelClaude Opus / Sonnetgorilla-openfunctions-v2 (6.91B)
Editorial score8.6 / 10—
Use cases
Claude agentstool useproduction
function-callingtool-useapi-invocationagent-backbonerag-fine-tuning
Pros
  • Official, well-tested abstractions
  • Same primitives as Claude Code
  • Strong tool-use ergonomics
  • TypeScript + Python SDKs
  • Fully open-source (Apache 2.0) with weights on HuggingFace
  • Purpose-trained for function calling, not a generic chat model retrofitted
  • Includes BFCL leaderboard as a public eval harness
  • GoEX runtime adds undo and damage-confinement for executed actions
  • Active Berkeley research backing with regular updates
Cons
  • Claude-only
  • Newer than LangGraph/CrewAI
  • Research project polish; not a managed SaaS
  • Smaller param count than frontier closed models
  • Self-hosting and ops are on you
  • Documentation skews toward papers and notebooks
Websitedocs.claude.comgorilla.cs.berkeley.edu
Pick Claude Agent SDK if
  • ✅ Official, well-tested abstractions
  • ✅ Same primitives as Claude Code
  • ✅ Strong tool-use ergonomics
  • ✅ TypeScript + Python SDKs
Pick Gorilla if
  • ✅ Fully open-source (Apache 2.0) with weights on HuggingFace
  • ✅ Purpose-trained for function calling, not a generic chat model retrofitted
  • ✅ Includes BFCL leaderboard as a public eval harness
  • ✅ GoEX runtime adds undo and damage-confinement for executed actions
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