Cursor Composer 2.5 ships on open-weights Kimi K2.5 at $0.50/M input
Cursor's May 18 Composer 2.5 release keeps Composer 2's Kimi K2.5 backbone and bets RL fine-tuning closes the gap to Opus 4.7 on coding benchmarks. Standard tier is $0.50/M input + $2.50/M output — roughly a tenth of frontier closed-ref pricing. The base weights are public under Modified MIT.
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