# Anthropic ends flat-rate AI agent model for third-party frameworks

- slug: anthropic-ends-flat-rate-ai-agent-model-for-third-party-frameworks
- date: 2026-04-06
- category: Agentics

A single autonomous agent running for a day can cost $1,000 to $5,000 at API rates, according to VentureBeat reporting on the economics. At 135,000 active OpenClaw instances, that is the scale Anthropic was managing under a flat-rate subscription model. That era ended April 4.

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