The Dark Side of the Moon releases Kimi K3.1 Pro, and the model weights will be open sourced before November 4th According to the official blog of Moon Dark Side, the first model of the K3.1 series, Kimi K3.1 Pro, and the high-speed version Kimi K3.1 Pro Highspeed have been released. The latter runs 2 to 3 times faster than the standard version, and both models support 1 million token context. Official data shows that K3.1 Pro scored 65.70% in Terminal Punch 4.0, higher than GPT-6 Astra's 58.20% and slightly lower than Claude Opus 5.5's 66.40%; In the internal hallucination test, the hallucination rate of a single statement decreased from 23.40% in K3 to 8.30%. The new model has been launched on Kimi.ai, Kimi Work, Kimi Code, and API, and the complete model weights are scheduled to be available before November 4th.