DeepSeek-V4-Flash-0731 launches with agent upgrades

DeepSeek released DeepSeek-V4-Flash-0731, a 284B-parameter MoE model, with official API now live in public beta. It scores 82.7 on Terminal-Bench 2.1, surpassing V4 Pro Preview's 72.1. At $0.10 per DeepSWE rollout, it delivers 4.8x the solves per dollar vs GPT-5.6 Luna.
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