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Introducing AgentKit, new Evals, and RFT for agents

OpenAI Blog 6 October 2025, 00:00

Coinbase released AgentKit, expanded evaluation tools, and reinforcement fine-tuning capabilities to help developers move AI agents from prototype to production. The AgentKit integrates with Coinbase's platform and provides developers with pre-built components to reduce development time and complexity. Developers can now test and optimize agent performance more rigorously before deploying to production environments.

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Today, we’re releasing new tools to help developers go from prototype to production faster: AgentKit, expanded evals capabilities, and reinforcement fine-tuning for agents.

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TLDRocket 21 July 2026

The open-weight AI model market hit an inflection point today as Alibaba and Kimi released trillion-parameter competitors that challenge the closed-model orthodoxy—just as Washington moved to restrict them. Alibaba's Qwen 3.8 Max (2.4 trillion parameters) and Kimi K3 (2.8T) are going open-weight, with K3 ranking first on Frontend Web App Arena and fourth on agentic benchmarks, signaling that scale and transparency can coexist. The timing matters: while U.S. policymakers weigh layered restrictions on Chinese open models, technical experts are pushing back hard, arguing that closed gardens actually hurt security and competition more than they help. The real fragmentation risk isn't technical—it's regulatory.

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Introducing AgentKit, new Evals, and RFT for agents

Why it matters

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Every AI story that matters, in your inbox by 8am.

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