Kimi K2.6

by Moonshot AI

Open-weight agentic model (released 2026-04-20): 1T total / 32B active, 256K context, Modified MIT licence, swarms of up to 300 sub-agents over 4,000 coordinated steps. Still served on Moonshot’s platform alongside the newer Kimi K3 (July 2026).

Specifications (Hugging Face card)

• Parameters: 1T total / 32B activated; 384 experts, 61 layers, native INT4 quantisation
• Context: 256K tokens (platform lists 262K)
• Input: text, image, video
• Licence: Modified MIT
• Release date: 2026-04-20 (publication date on Moonshot’s own blog, kimi.ai/blog/kimi-k2-6, fetched 2026-10-02; consistent with the secondary sources). The Hugging Face card shows no date.
• Card also lists a 400M-parameter MoonViT vision encoder, 8 of 384 experts per token, SWE-Bench Verified 80.2% and LiveCodeBench 89.6% (vendor).

Agent swarm

Per Moonshot’s blog: 300 sub-agents and 4,000 coordinated steps (K2.5: 100 and 1,500). The blog (confirmed 2026-10-02) also describes a K2.6-backed agent running autonomously for 5 days on monitoring and incident response (vendor anecdote).

Benchmarks (vendor-reported)

SWE-Bench Pro 58.6% (blog compares GPT-5.4 57.7%, Claude Opus 4.6 53.4%); Terminal-Bench 2.0 66.7% (Terminus-2); Humanity’s Last Exam with tools 54.0%. The earlier claim “#1 open-weight model on Artificial Analysis, April 2026” could not be verified and was dropped (superseded by newer open models such as K3); check the live leaderboard. Figures are vendor-reported; “ties GPT-5.5 on SWE-Bench Pro (58.6%)” in third-party coverage matches the same number.

Plans

Usage-based API pricing per token on the Moonshot platform, with cheaper cache-hit input; context 262,144 tokens. Neighbours on the same page: Kimi K2.7 Code (plus a Highspeed variant at a higher rate) and Kimi K3 (1,048,576 context, priced higher than K2.6). Re-fetched 2026-10-02 with no deprecation notice for K2.6. Current prices: see the vendor pricing page https://platform.kimi.ai/docs/pricing/chat

What changed since (2026)

• Kimi K2.7 Code: June 2026 (Wikipedia). Kimi K3: 2026-07-16, 2.8T parameters, native vision, 1M context (Wikipedia; see Kimi K3 for weights and licence). K2.6 remains listed and priced on the platform.
• Kimi K2.5 launched January 2026 (1T MoE, 32B active; Wikipedia).

See also

• Kimi K2.5, Kimi K2.7 Code, Kimi K3

Sources (accessed 2026-10-01 and 2026-10-02)

• https://huggingface.co/moonshotai/Kimi-K2.6 (checked 2026-09-30)
• https://www.kimi.ai/blog/kimi-k2-6
• https://platform.kimi.ai/docs/pricing/chat
• https://huggingface.co/moonshotai (update dates, 2026-09-30)
• https://en.wikipedia.org/wiki/Kimi_(AI)
• Search summaries for the 2026-04-20 date: verdent.ai, miraflow.ai, kili-technology.com, llm-stats.com, openrouter.ai (no date on page)

Related

• Kimi K2 series (generation hub) · kimi (family overview)