Originally published on AI Tech Connect.
What changed since April Eleven weeks ago the open-weight conversation had a single, fairly settled answer. It does not any more. Four flagship releases have landed back to back since April 2026, and the "best open-weight model" title has changed hands three times in that window. Here is the shape of it before we get into the detail: DeepSeek V4 Pro (24 April) opened the wave and briefly topped the open-weight field on Artificial Analysis's Intelligence Index. Kimi K2.6 (late April) from Moonshot AI landed within days, pushing hard on long-horizon agentic coding. MiniMax M3 (1 June) was the first open-weight model to pair frontier coding with a genuinely usable 1M-token context and native multimodality. Kimi K2.7 Code (12 June) followed less than a fortnight later, a coding-specialised…
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