GPT-5.6 Sol preview makes agent work a receipt problem.
…5 launch describes the same shift from another angle: more agentic day-to-day execution at lower cost than the largest model lane. Fable 5's restoration adds the hard counterweight: when a frontier model…
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OpenAI's Sol preview, Anthropic's Sonnet 5 launch, and Fable 5's restored access all point at the same public question: how do people verify long-running agent work?
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