OpenAI loosens Microsoft exclusivity to distribute via Google TPU and AWS; Xiaomi open-sources MiMo-V2.5 with 1M-token context; Sakana's 7B Conductor orchestrates frontier models to reach 83.9% on LiveCodeBench.

Latent Space · April 28, 2026

AI Summary

•OpenAI updated its Microsoft partnership so Microsoft remains the primary cloud, but OpenAI can now distribute via Google TPU, AWS Trainium, and AWS Bedrock, with product/model commitments extending to 2032 and revenue share through 2030. OpenAI models are coming to AWS Bedrock in the coming weeks.
•Xiaomi open-sourced MiMo-V2.5-Pro and MiMo-V2.5 under MIT, both with 1M-token context. MiMo-V2.5-Pro is roughly 1T total / 42B active, trained on 27T tokens in FP8; MiMo-V2.5 is about 310B total / 15B active, trained on 48T tokens. Xiaomi also announced a 100T token grant for builders.
•Sakana's Conductor is a 7B model trained with RL to orchestrate a pool of frontier models by dynamically deciding which agent to call and what subtask to assign. It reached 83.9% on LiveCodeBench and 87.5% on GPQA-Diamond, beating any single worker in its pool.

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