AI Engineering

Claude vs GPT for Production AI Agents — An Honest Comparison

March 27, 2026·9 min read

Claude vs GPT for Production AI Agents

I've built production AI agents with both Claude and GPT. At Avoca, our conversational agents run on Claude. At Fegmo, we used Claude on AWS Bedrock. At Fuse AI, the core was GPT-4.

Here's an honest comparison based on shipping real products.

Tool Calling: Claude Wins

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Augusta Bhardwaj

Full-stack & AI engineer. Building production AI systems at YC-backed startups. Founder of 4UGUSTA Systems — a web development and AI agency.

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