Tencent Hunyuan Hy4 officially launches on B.AI, with API and Web Chat opening simultaneously and a 50% discount.
Original headline腾讯混元 Hy4 正式登陆 B.AI，API 与 Web Chat 同步开放并享 5 折优惠
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Tencent's Hunyuan Hy4 model launched on B.AI on November 4, opening simultaneously via API and Web Chat. Hy4 adds vision understanding for text and image inputs and supports a 1M-token context window, targeting multi-step agent workflows, software development, document and chart analysis, and office automation. B.AI is offering a 50% discount on the model through December 31, 2026, at 23:59:59 SGT, lowering costs for high-frequency calls and scaled agent deployments. The release matters because it pairs long-context reasoning with visual input for developers running sustained multi-step tasks. Next, watch adoption of Hy4 in agent pipelines and whether the promotional pricing is extended beyond the current window.
Muhabbit's AI wrote this summary in its own words from TechFlow's report and translated it from Chinese. It can get details wrong, so check the source.
Named in this story
Hunyuan Hy4, Tencent, B.AI