Swift 1.5 Qwen3.8-27B is UkisAI's reasoning-efficient derivative of Qwen3.8-27B. It uses 58.5% fewer thinking tokens while scoring 0.35% higher than the base, for a 1.95× speed-up on several tasks. Swift 1.5 is a direct upgrade from Swift 1.0, our model with 350k+ downloads, delivering stronger overall performance than both base and Swift 1.0 in various tasks, especially coding and agentic, while using fewer thinking tokens. We accomplished that by scaling up the post-training (RL and OPD) from the previous version. We gave base Qwen3.8-27B and Swift 1.5 27B the same prompt: Base Qwen3.8-27B took 104.6 minutes to build its game. Swift 1.5 took 11.39 minutes. We made Swift efficient by…
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LEBON
jEROMELebon91
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Models on Hugging Face1
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