Mistral AI launches Devstral, powerful new open source SWE agent model that runs on laptops
Published on: 2025-06-29 08:57:15
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Well-funded French AI model maker Mistral has consistently punched above its weight since its debut of its own powerful open source foundation model in fall 2023 — but it took some criticism among developers on X recently for its last release of a proprietary large language model (LLM) called Medium 3, which some viewed as betraying its open source roots and commitment.
(Recall that open source models can be taken and adapted freely by anyone, while proprietary models must be paid for and their customization options are more limited and controlled by the model maker.)
But today, Mistral is back and recommitting to the open source AI community, and AI-powered software development in particular, in a big way. The company has teamed up with open source startup All Hands AI, creators of Open Devin to release Devstral, a new open-source language model with 24-mil
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