Cognition SWE-1.6 ships free coding agent at 950 tokens/sec.
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Cognition SWE-1.6 ships free coding agent at 950 tokens/sec. Cognition released SWE-1.6, making it generally available in Windsurf with a free tier for three months. The model improves SWE-Bench Pro scores by over 10% at up to 950 tokens per second. Cognition released SWE-1.6 on April 7, making it generally available in Windsurf with a free tier for the next three months. The model improves SWE-Bench Pro scores by over 10% compared to SWE-1.5 while running at up to 950 tokens per second on Cerebras hardware. What happened. SWE-1.6 is Cognition's latest coding agent model, post-trained from scratch to optimize both intelligence and user experience. The model reduces unnecessary terminal reliance, uses parallel tool calls more often, and loops less frequently during complex tasks. Cognition calls this focus on "model UX" a new training objective alongside raw benchmark performance. The release follows an early preview that showed the 10%+ SWE-Bench Pro improvement. The final model maintains that benchmark performance while adding behavioral refinements that make it smoother to use in continuous agent workflows. Why it matters. A free, fast coding agent lowers the barrier for creators who use AI to build tools, automate workflows, or develop plugins. The 950 tokens/second speed through Cerebras means near-instant responses, making it practical for interactive development...
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