Moonshot AI
Kimi K3
Moonshot AI's 2.8T-parameter mixture-of-experts model and the highest-scoring open-weight entry on the Artificial Analysis Intelligence Index.
Our editorial assessment, based on the public sources listed below. Last reviewed .
- Overall rank
- #18
- Tier
- A
- Score
- 85.0
- Main category
- Overall
Strengths
- Highest-ranked open-weights model on the Artificial Analysis Intelligence Index v4.1
- 2.8T total parameters with 104B active at inference and a 1M-token context window
- Fifth overall on the August 2026 BenchAlign leaderboard, ahead of several closed frontier models
Considerations
- Self-hosting a 2.8T MoE checkpoint requires serious multi-GPU infrastructure
- Official API price ($3 input / $15 output per 1M tokens) is above many other open-weight options
Price
Open weights on Hugging Face; API $3 input / $15 output per 1M tokens ($0.30 cached input)
Shown for reference — price is not part of the score.
Score breakdown
- Performance
- 87.0
- 55% of score
- Reputation
- 86.0
- 35% of score
- Recency
- 70.0
- 10% of score
The overall score combines these sub-scores using the weights shown. How we score →
Verification status
Each field carries its own re-verification date. Amber means older than 90 days — treat those figures as stale until re-checked.
- Pricing
- Benchmark
- Reputation
- Feature list
Checked against the sources listed below.
Sources
- Artificial Analysis — Kimi K3 (opens in a new tab)Accessed:
- Artificial Analysis — Kimi models (opens in a new tab)Accessed:
- Kimi API Platform — Model list (opens in a new tab)Accessed:
- BenchLM.ai Frontier AI Models (Aug 2026) (opens in a new tab)Accessed:
- Swfte AI Model Leaderboard (Sep 2026) (opens in a new tab)Accessed:
Show 9 more sources
- Perplexity Agent API Changelog (opens in a new tab)Accessed:
- GMI Cloud — BenchAlign leaderboard, August 2026 (opens in a new tab)Accessed:
- Artificial Analysis — Intelligence Index leaderboard (opens in a new tab)Accessed:
- Artificial Analysis — open-source model comparison (opens in a new tab)Accessed:
- Best AI Models in 2026: Ranked by Benchmark and Cost (ofox.ai) (opens in a new tab)Accessed:
- Entelligence AI — Best AI Models of July 2026 (opens in a new tab)Accessed:
- Best Open Source LLMs 2026 (Onyx) (opens in a new tab)Accessed:
- Artificial Analysis — AI Model & API Providers Analysis (opens in a new tab)Accessed:
- Best AI Models May 2026 (opens in a new tab)Accessed:
Similar models
- Qwen3.8 MaxAlibaba#13 · Tier S · Score 86.3Compare
- GLM-5.3Z.ai#14 · Tier S · Score 86.3Compare
- Claude Opus 4.8Anthropic#21 · Tier A · Score 84.7Compare
- Grok 4.5xAI#24 · Tier A · Score 83.8Compare