Uploaded August 2025 | Updated September 2026, 2 weeks ago

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We will look at Horizon Beta, the alleged Open Weight Model from OpenAI. Its blazing 140 TPS throughput, huge 256K-token context window, and leaked 120B/20B MoE specs.

openrouter.ai/openrouter/horizon-beta
https://x.com/Yuchenj_UW/status/1951328626151952698
https://x.com/apples_jimmy/status/1951180954208444758
https://x.com/kevinsxu/status/1949522090916266346
https://x.com/natolambert/status/1949547864851681356

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