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Composer 2 is now available in Cursor, the AI-powered code editor. This brief announcement notes the availability of the updated Composer feature within the Cursor IDE.

Composer 2 is now available in Cursor.

<p>Composer 2 is now available in Cursor.</p>

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A developer discovered that Cursor's Composer 2 model appears to be Kimi K2.5 with reinforcement learning, revealed by inspecting the OpenAI base URL endpoint. The model ID 'kimi-k2p5-rl-0317-s515-fast' was found under the Anysphere account, suggesting Cursor is using Moonshot AI's Kimi K2.5 model without transparent branding.

was messing with the OpenAI base URL in Cursor and caught this

accounts/anysphere/models/kimi-k2p5-rl-0317-s515-fast

so composer 2 is just Kimi K2.5 with RL
at least rename the model ID

<p>was messing with the OpenAI base URL in Cursor and caught this

accounts/anysphere/models/kimi-k2p5-rl-0317-s515-fast

so composer 2 is just Kimi K2.5 with RL
at least rename the model ID</p>