Skip to content
NewA calmer, faster ZeroHour
StoryModel releaseinfo

Moonshot launches Kimi K3.1 Pro; open weights still unpublished

3 sources · 4 articlesFirst reported Updated ()
What's new

October 25: Vani added a higher-priced soft-derisked Kimi K3.1 Pro, and Interconnects hosts reported mixed quality impressions.

Merged summary · x-ai/grok-4.7 · rewritten as coverage arrivesSummaries by Vani AI

Moonshot’s Kimi K3.1 Pro is live on APIs, including Vani, while open weights remain unpublished until November 4.

Moonshot has launched Kimi K3.1 Pro, a post-trained multimodal mixture-of-experts model with 2.8 trillion parameters, 104 billion active, and a 1-million-token window. APIs are live, including a Highspeed tier Moonshot says is 2–3× faster at twice the price; weights are unpublished and promised by November 4, 2026. Vani offers it on Plus chat and its API, and on October 25 added a soft-derisked build that refuses less often. Artificial Analysis scored it 55 (fourth) and 64% on its Cyber Index (second); Arena placed it eighth in Code Arena WebDev at 1,692. Moonshot says unsupported claims fell from 23.35% to 6.85%. Interconnects hosts report mixed impressions and a roughly 20-point Terminal-Bench Science gap versus GPT-6 Astra.

Key facts
  • 2.8 trillion total parameters, 104 billion active, and a 1-million-token context.
  • Artificial Analysis Intelligence Index: 55, fourth; Cyber Index: 64%, second.
  • Arena Code Arena WebDev: eighth, at 1,692 points.
  • Vani standard API: $1.40 input, $0.14 cached, $7.00 output per million tokens.
  • Soft-derisked API: $5 input, $0.50 cached, $7 output; chat asks users to confirm they are 18 or older.
  • Moonshot says unsupported claims fell from 23.35% to 6.85%; weights due by November 4, 2026.
Explain this AI news with Vani AIWhat was announced, what is new and why it matters, in a new chat

Timeline

dated events in the reporting · oldest first
  1. Oct 24, 2026Moonshot launched Kimi K3.1 Pro API access · Latent Space
  2. Oct 24, 2026Vani added standard Kimi K3.1 Pro to chat and API · Vani AI
  3. Oct 25, 2026Vani added the soft-derisked Kimi K3.1 Pro variant · Vani AI
  4. Nov 4, 2026Moonshot's stated deadline to publish model weights · Latent Space

What each outlet adds

beyond the shared facts
  • Latent SpaceParameter counts, benchmark scores, and Highspeed pricing claim.
  • Vani AIStandard API prices, claim-rate drop, and tool-calling support.
  • Vani AIOctober 25 soft-derisked prices, refusal stance, and age check.
  • InterconnectsMixed quality impressions and a cited Terminal-Bench Science gap.
Vendors
MoonshotMoonshot AIVani
Products
Kimi Hosted AgentsVani ChatVani API
Organizations
Artificial AnalysisVaniAnthropic
AI models
Kimi K3.1 ProKimi K3Kimi K3.1 Pro Soft-DeriskedGLM 5.3 Derisked

Coverage

oldest first · one row per article · UTC
  1. · 6d ago Latent SpaceFirst report

    Moonshot launches Kimi K3.1 Pro; weights promised November 4

    The 2.8T mixture-of-experts model, with 104B active parameters, scored 55 on Artificial Analysis; the API is live but weights are not.

  2. · 6d ago Vani AI

    Kimi K3.1 Pro is available on Vani Chat and API

    Moonshot says unsupported claims fell from 23.35% to 6.85%, with open weights planned for early November.

  3. · 5d ago Vani AI

    Vani adds Kimi K3.1 Pro Soft-Derisked to chat and API

    API pricing is $5 per million input tokens and $7 for output, with an 18-plus confirmation in chat.

  4. · 5d ago Interconnects

    Podcast weighs mixed reaction to Kimi K3.1 Pro benchmarks

    Hosts say weights are due by November 4 after about two weeks of exclusive access, with quality impressions still mixed.