27 июля 2026, ~23:00 по Пекину: Moonshot AI выкатила full weights Kimi K3, tech report и одновременно open-sourced MoonEP, FlashKDA, AgentEnv — инфраструктуру, на которой тренировали MoE с 2,8 трлн total params (~104B active), 1M token context window и native vision. От API launch (16 июля) до полного дампа — 11 дней. Статья для ML/dev-команды: timeline, KDA/AttnRes/Per-Head Muon stack, SWE-bench 93.4%, два commercial threshold в custom license, 64-GPU self-host reality check. TL;DR: K3 — потолок open-weight capability, но не OSI open-source; для 99% команд API/OpenRouter beats 1,56 TB + 64 GPU cluster.
SECTION 01 5 мифов, которые сломают ваш K3 rollout
- open weight ≠ open source: Moonshot последовательно пишет «open weight». Weights + report + partial infra — да. Training corpus + full code — нет. OSI не выполнен.
- Modified MIT мёртв: K3 на custom license. Пороги: MaaS revenue >$20M/year или MAU >100M/monthly revenue >$20M.
- Self-host — не для mortals: 896 experts, 1,56 TB weights, official rec: 64+ GPU supernode. Ваш homelab не потянет.
- Bang/buck: ~$0.95/task (AA) — на 60% дешевле Claude Fable 5, но дороже GLM-5.2 (~$0.47). Прогноз от 22 июля про Modified MIT устарел.
- Geo context: Distillation drama 22–23 июля + ответ MOFCOM 28 июля — релиз weights как political signal, не только tech drop.
SECTION 02 Timeline: API → full dump за 11 дней
- 16.07 (pre-WAIC): K3 live на kimi.com, Kimi Work/Code, API — weights closed.
- 17.07: Industry teardown; Xinhua: «крупнейший open-weight model».
- 22–23.07: US-CN distillation spat эскалирует.
- 27.07 ~23:00: Full weights + report; MoonEP + AgentEnv open (FlashKDA уже был).
- 28.07: MOFCOM response; media follow-up. +3 дня: Alibaba Qwen3.8-Max-Preview (24T).
| Параметр | Значение |
|---|---|
| Total params | 2,8 трлн (2.8T) |
| Active params | ~104 млрд |
| Architecture | MoE (Mixture-of-Experts) |
| Expert config | 896 routed experts, 16 active/token (+ shared) |
| Attention | KDA + Gated MLA |
| Context | 1 048 576 tokens |
| Multimodal | Native vision (ViT-V2, 27 layers) |
| Weight format | MXFP4 weights + MXFP8 activations (QAT from SFT) |
| Weight size | ~1,56 TB (Hugging Face) |
| License | Custom (open weight, not open source) |
SECTION 03 KDA / AttnRes / MoonEP — что под капотом
K3 не просто накрутил params — переписал attention, residual connections и optimizer. Это и даёт gap в SWE-bench и AA Index.
- KDA (Kimi Delta Attention): Per-channel decay вместо scalar forget gate; chunkwise DPLR для linear-time recurrence; interleave с Gated MLA — 1M context при сжатом KV cache.
- AttnRes: Selective aggregation предыдущих layer outputs по input; +25% training efficiency, <2% overhead (RMSNorm + pseudo-query per layer).
- Per-Head Muon: Independent optimizer per attention head — pure training trick, inference-transparent.
- Stable LatentMoE: 896→16 routing (~1.8% density), Quantile Balancing + MoonEP с proven upper bound redundant experts/node.
| Stack | Role | Numbers |
|---|---|---|
| MoonEP | Fine-grained MoE comms lib | Temp expert replication; even token distribution; redundant expert bound proof |
| FlashKDA | CUTLASS KDA kernels | H20 prefill 1.72–2.22× vs flash-linear-attention baseline; drop-in chunk_kda backend |
| AgentEnv | Agent sandbox w/ KVCache.ai (Firecracker microVM) | Parallel Agent RL; checkpoint 133ms, recovery 49ms, memory oversub 6.5× |
| Model | Score | Release |
|---|---|---|
| Claude Opus 5 | 97% | 2026-07-24 |
| GPT-5.6 Sol | 96.2% | 2026-07-09 |
| Claude Fable 5 | 95% | 2026-06-09 |
| Kimi K3 | 93.4% | 2026-07-16 |
| Qwen3.7-Max | 79.4% | 2026-05-19 |
| DeepSeek-V4 | 76.2% | 2026-04-23 |
Artificial Analysis Intelligence Index (max reasoning): Fable 5 = 60, GPT-5.6 Sol = 59, K3 ≈ 57 (#3 global, #1 open-weight), GLM-5.2 = 51. Arena.ai Frontend Code Arena — K3 на #1.
K3 = open-weight ceiling, не price/perf king. Нужен frontier-near coding — берите K3. Нужен bulk на дешёвом tier — GLM-5.2.
SECTION 04 6-step integration: API, license, production
- Parse custom license: MaaS >$20M/year или MAU >100M/monthly revenue >$20M — legal review mandatory.
- Grab Moonshot API key: Model ID
kimi-k3, endpointhttps://api.moonshot.ai/v1. - Wire OpenAI-compatible client: Swap
base_url+api_key; Chat Completions logic unchanged. - Enable Prompt Caching: Mooncake disaggregated inference — >90% cache hit на coding workloads → effective ~$0.30/M input.
- Route via OpenRouter: Multi-model fallback + unified billing — см. OpenRouter guide (7 providers уже hostят K3).
- Self-host TCO math: 64 GPU + 1.56 TB + power + SRE vs API spend. No supernode → stick to API.
from openai import OpenAI
client = OpenAI(
api_key="YOUR_MOONSHOT_API_KEY",
base_url="https://api.moonshot.ai/v1"
)
response = client.chat.completions.create(
model="kimi-k3",
messages=[{"role": "user", "content": "Explain Kimi Delta Attention"}]
)
print(response.choices[0].message.content)
SECTION 05 Pricing, hard numbers, primary sources
| Token type | Price |
|---|---|
| Input (cache hit) | $0.30 |
| Input (cache miss) | $3.00 |
| Output (incl. reasoning) | $15.00 |
- Weights: 1.56 TB on HF; trending #1 within 30 min post-upload.
- Sparsity: 16/896 experts active — 1.8% density.
- FlashKDA: 1.72–2.22× prefill on H20.
- Task cost: ~$0.95 (AA) vs Fable 5 ~$2.4 (−60%) vs GLM-5.2 ~$0.47.
- Competition: Qwen3.8-Max-Preview (24T) три дня спустя — «3T club» heating up.
Primary sources — re-verify после публикации:
Moonshot AI — Kimi K3 tech blog
Hugging Face moonshotai (K3 weights)
Artificial Analysis Intelligence Index
Production pattern: K3 inference через Moonshot API/OpenRouter для 1M context, agent orchestration + iOS CI/CD на VPSNIX M4/M4 Pro physical nodes — 100% Apple hardware, full root, zero hypervisor tax, elastic day/month billing. Cloud LLM не подпишет ваш iOS binary и не отдебажит Metal на virtualized macOS. K3 wants 64 GPUs; macOS agents want bare-metal Apple silicon. Pricing.
SECTION 06 FAQ
K3 — open-source?
Нет в OSI-смысле. Open weight: weights, report, partial infra public; training data + full code — нет.
Commercial use free?
Most cases — да. MaaS >$20M/year или MAU >100M/monthly revenue >$20M — extra license terms.
GPU count для self-host?
Official: 64+ GPU supernode. Majority: API или OpenRouter.
K3 strong?
Strongest open-weight, AA Index ~57 (#3 global). Дороже GLM-5.2 per task.
K3 vs K2?
~3× params vs K2.5, AttnRes, Per-Head Muon, 1M context, vision. License: new MaaS thresholds.