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    Tag: Chain of Thought

    Sep 15
    16 min read
    DeepSeek-R1 and the Open-Weights Reasoning Revolution: What Builders Need to Know

    For the initial wave of post-training reasoning models, test-time compute was confined behind proprietary black-box APIs. Frontier systems withheld raw chain-of-thought tokens, masking internal reasoning trajectories behind encrypted tokens or high-level summaries. Builders were left with opaque cost structures, inability to fine-tune intermediate reasoning steps, and strict operational lock-in. The release of DeepSeek-R1 upended that […]