# Moonshot's Kimi K3.1 Pro scores within a point of Claude Opus 5.5 on Terminal-Bench 4.0, with open weights promised by November 4

The 2.8-trillion-parameter mixture-of-experts model runs 104 billion active parameters with a 1-million-token context, but every headline number comes from Moonshot itself and the weights are not yet downloadable.

- Conviction: 40 / 100 (forming)
- Horizon: Emerging (watchlist)
- Tracking since: 2026-10-24T00:00:00.000Z
- Last updated: 2026-10-24T06:43:21.582Z
- Canonical: https://polylog.news/ai/trends/event-moonshot-s-kimi-k3-1-pro-scores-within-a-point-of-claude-opu
- Publisher: Polylog
- Affected regions: China

## Recent evidence

- [neutral] Moonshot's Kimi K3.1 Pro scores within a point of Claude Opus 5.5 on Terminal-Bench 4.0, with open weights promised by November 4 (2026-10-24): Auto-opened to track an article no existing trend covered.