Moonshot Launches Kimi K3, a 2.8 Trillion Parameter Model Ranking Third to Fable and GPT-5.6
Moonshot has released Kimi K3, an open-weight artificial intelligence model containing 2.8 trillion parameters and a 1 million token context window. The model utilizes Kimi Delta Attention and a latent mixture of experts architecture, ranking third on aggregate benchmarks behind Anthropic’s Claude Fable 5 and OpenAI’s GPT-5.6 while surpassing Claude Opus 4.8.
Priced at $3 per million input tokens and $15 per million output tokens, the model matches the standard tier of rival offerings and extends pressure on Silicon Valley artificial intelligence budgets. Open weights parameters became available this week, with official technical documentation and broader licensing details expected in the coming days. The release continues to narrow the performance gap between open weights systems and closed source frontier models.
From the sources (25 posts)
@kimi_moonshot
@mtsliveSITUATION BREWING: Moonshot AI releases a video teasing their upcoming model Kimi K3.
@andrewcurran_It's happening.
@mweinbachRT @Kimi_Moonshot:
@jukan05FT: KIMI TO UNVEIL K3 TONIGHT FT: KIMI’S MODEL IS EXPECTED TO HAVE 2–3 TRILLION PARAMETERS FT: KIMI K3 WILL BE AN OPEN-WEIGHT MODEL FT: KIMI K3 IS EXPECTED TO OUTPERFORM OPUS 4.8, BUT FALL SHORT OF FABLE 5
@jukan05* The reporter said it could be as early as tonight. It’s not confirmed that it will be released tonight.
@synthwavedd🚨 Per Financial Times, Moonshot intend to launch Kimi K3 as early as tonight. K3 is 2-3T total parameters - the largest Chinese model to date - while outperforming 4.8 but staying overall behind Fable in benchmarks as expected
@kimmonismusKimi k3 is being released tonight, via FT -2-3t parameters (Opus4.8 has about 1.5t) -1m context -Expected to exceed Opus 4.8 performance! The time when China was six months behind is over. History is presumably being made today. https://
@scaling01RT @zijing_wu: Chinese AI start-up Moonshot to launch model challenging Anthropic’s lead * Set to release as early as tonight * 2-3T, larg…
@kimmonismusKimi K3 incoming. Most likely today. Btw. banger clip.
@teortaxestexOne year ago: «I know Kimi K2 has countless flaws. I have never wanted K3 more than I do right now» It'll be powerful, and it'll be useful. But most of all, I believe it'll be glorious. They have their pride. They want to have an R1-level m
@kimmonismusSource:
@wallstengineFT reports Moonshot is set to release Kimi K3 as early as tonight. K3 is expected to be China’s largest AI model to date, with 2T-3T parameters, and will be released as an open-weight model K3 is expected to outperform Claude Opus 4.8 on
@ftRT @zijing_wu: Chinese AI start-up Moonshot to launch model challenging Anthropic’s lead * Set to release as early as tonight * 2-3T, larg…
@shanumathew93Reminder that Opus 4.8 came out at thee end of May. So frontier leadership went from 6+ months to 1-1.5 months. Unclear how much of this is because of wide distillation and how far internal models are at American labs but the direction is
@teortaxestexKimi K3 clones the ad of Kimi K3
@jukan05
@zephyr_z9RT @zijing_wu: Chinese AI start-up Moonshot to launch model challenging Anthropic’s lead * Set to release as early as tonight * 2-3T, larg…
@kimmonismusKimi k3 starts rolling out. Official release is imminent! Super freaking excited for the evals. Will it bear opus 4.8? Could be a real game changer, literally.
@thezachmuellerRT @xeophon: Get your cope takes before the drop: - "It isn’t at the frontier, it’s 6 months behind when you look at the unreleased Mythos…
@zephyr_z9BRUH This is crazy Definitely Fable level at coding
@thezachmuellerRT @teortaxesTex: Preliminary, but: I think Kimi K3 could exceed Mythos with more post-training not "in theory", not "in the limit" – like,…
@teortaxestexrare and welcome Kimi bear
@zephyr_z9LESS GO
@ftChinese AI start-up Moonshot to launch model challenging Anthropic’s lead