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Kimi K3.1 Pro

● live

MoonshotSOTA scopeopen weightsChinese labs stream

Released: October 23, 2026
Price: $2 / $10 per 1M tokens
Context: 1.05M tokens
Bench index: 68.8 · #11 of 44

The watchers keep tracking it: lineup changes, pricing moves and deprecations all alert.

Launch details

Live — Oct 23 (Kimi app ~16:00 UTC, API 17:15 UTC per Moonshot); kimi-k3.1-pro $2/$10 per 1M, cached input $0.20; kimi-k3.1-pro-highspeed (2-3× faster) $4/$20; K3 was $3/$15; 1M ctx; 2.8T total / 104B active MoE, multimodal, a post-trained K3; open weights promised by Nov 4; first model in Moonshot's K3.1 series; Moonshot's own table: Terminal-Bench 4.0 65.7% vs Opus 5.5 66.4% and GPT-6 Astra 58.2%; hunted since Jul 30 (researcher-confirmed for August; internal name k3d1-agent); Oct 25 20:14 UTC: Moonshot apologized on X for rate limits and unnecessary quota use on the K3.1 Pro subscription plan, gave every subscriber a one-time reset restoring 25% of their monthly quota (about a week of use, per Moonshot), and says it cut unnecessary subagent calls and output length.

No reading from our side right now· checked 3h agoIs Kimi down? →

Watch for Moonshot’s next model, free →Launch report (PDF)

Timeline

2026-10-25

Moonshot apologizes for Kimi K3.1 Pro plan rate limits and gives back a quarter of every subscriber's quotapost

Moonshot says the rate limits and quota burn on its Kimi K3.1 Pro subscription plan were its own fault.

2026-10-23

Kimi K3.1 Pro verified live — confirmed by hand at Moonshot's own page, alert fired at 18:16:24 UTCverified

2026-10-23

Moonshot teases Kimi K3.1: its own video shows Kimi Code running the modelpost

Moonshot AI posted a 24-second teaser video on X on October 23 whose first shot is its coding agent, Kimi Code, with the model line reading "Kimi K3.1". The video ends on the Kimi wordmark and gives no date, price or benchmark.

2026-10-23

Kimi K3.1 Pro is live: $2 / $10 on the Kimi API, a 1M-token context, open weights by Nov 4post

Moonshot launched Kimi K3.1 Pro today. It is on the Kimi API now at $2 per million input tokens and $10 per million output, a faster Highspeed version costs $4 and $20, and Moonshot says the full weights will be released by Nov 4.

2026-10-23

New on the radar: Kimi K3.1 Pro appeared in models.dev (moonshotai)confirmed

2026-10-23

New on the radar: Kimi K3.1 Pro appeared in OpenRouter catalogconfirmed

2026-07-30

Kimi K3.1 is coming in August — a Moonshot researcher has confirmed it, and it stays open-weightrumor

On the bench index

LMArena: 1,694.6LiveBench: 71.3Vals AI: 62.5Artificial Analysis: 46AW Index: 68.8

full comparison table →

Coding leaderboard

#22 of 45 on the coding index, at 45.1 · combines LMArena · Coding, LiveBench · Coding, Vals Vibe Code Bench

the AI coding leaderboard →

The official word

We alert on verified API behavior, never on announcements alone — but when Moonshot speaks, it's here: moonshot.ai ↗

Where to use Kimi K3.1 Pro

17 providers list Kimi K3.1 Pro in the models.dev catalog (as of 2026-10-28), under the model ids shown below.

Moonshot AIkimi-k3.1-pro · kimi-k3.1-pro-highspeed

Moonshot AI (China)kimi-k3.1-pro · kimi-k3.1-pro-highspeed

OpenRoutermoonshotai/kimi-k3.1-pro

Vercel AI Gatewaymoonshotai/kimi-k3.1-pro · moonshotai/kimi-k3.1-pro-highspeed

302.AIkimi-k3.1-pro

DevPass (LLM Gateway)kimi-k3.1-pro · kimi-k3.1-pro-highspeed

Eden AImoonshot/kimi-k3.1-pro

Kilo Gatewaymoonshotai/kimi-k3.1-pro

LLM Gatewaymoonshot/kimi-k3.1-pro · moonshot/kimi-k3.1-pro-highspeed

Merge Gatewaymoonshot/kimi-k3.1-pro

NanoGPTmoonshotai/kimi-k3.1-pro · moonshotai/kimi-k3.1-pro-highspeed

NEAR AI Cloudmoonshotai/kimi-k3.1-pro

Also listed by Novita AI, OpenCode Go, Prime Inference, Requesty, Venice AI.

Listings cover the model family, so a provider may list a sibling tier under the same name. Check the id before you build on it.

Try it first-hand on Moonshot's own Kimi ↗

Kimi K3.1 Pro: quick answers

Is Kimi K3.1 Pro out?

Yes. Kimi K3.1 Pro is live and has been since October 23, 2026.

When was Kimi K3.1 Pro released?

October 23, 2026.

Is Kimi K3.1 Pro good for coding?

On the ArtificialWatch coding index it scores 45.1, #22 of 45 ranked models. The index combines LMArena · Coding, LiveBench · Coding and Vals Vibe Code Bench, taking the median of each model's percentile across them.

Who makes Kimi K3.1 Pro?

Moonshot. ArtificialWatch also tracks Kimi K3, Kimi K2.8, Kimi K4 and Next Kimi K3 (3.2+) from Moonshot.

Where can I use Kimi K3.1 Pro?

17 providers list it in the models.dev catalog, including Moonshot AI, Moonshot AI (China), OpenRouter, Vercel AI Gateway and 302.AI. The exact model ids each one lists are on this page.

How much does Kimi K3.1 Pro cost?

Moonshot AI's own API lists Kimi K3.1 Pro (kimi-k3.1-pro) at $2 per million input tokens and $10 per million output tokens, and $0.20 per million cached input tokens. Prices as published in the models.dev catalog, as of 2026-10-28.