MoonshotAI: Kimi K2 0905 performance data on Rival is based on blind head-to-head community voting. Overall win rate: 52.2% across 92 duels. All vote data is part of Rival's open dataset of 21,000+ human preference judgments across 200+ AI models. Model responses are curated from 54 challenges.
We built MoonshotAI: Kimi K2 0905 a whole page. Gave it the spotlight. And now, in the spirit of fairness, here are models that would like a word.
MoonshotAI: Kimi K2 0905 performance data on Rival is based on blind head-to-head community voting. Overall win rate: 52.2% across 92 duels. All vote data is part of Rival's open dataset of 21,000+ human preference judgments across 200+ AI models. Model responses are curated from 54 challenges.
We built MoonshotAI: Kimi K2 0905 a whole page. Gave it the spotlight. And now, in the spirit of fairness, here are models that would like a word.
Kimi K2 0905 is the September update of Kimi K2 0711. It is a large-scale Mixture-of-Experts (MoE) language model developed by Moonshot AI, featuring 1 trillion total parameters with 32 billion active per forward pass. It supports long-context inference up to 256k tokens, extended from the previous 128k. This update improves agentic coding with higher accuracy and better generalization across scaffolds, and enhances frontend coding with more aesthetic and functional outputs for web, 3D, and related tasks. Kimi K2 is optimized for agentic capabilities, including advanced tool use, reasoning, and code synthesis. It excels across coding (LiveCodeBench, SWE-bench), reasoning (ZebraLogic, GPQA), and tool-use (Tau2, AceBench) benchmarks. The model is trained with a novel stack incorporating the MuonClip optimizer for stable large-scale MoE training.
Use MoonshotAI: Kimi K2 0905 in your applications via the OpenRouter API. Copy the code below to get started.
import requests
response = requests.post(
"https://openrouter.ai/api/v1/chat/completions" ,
headers={
"Authorization""Bearer $OPENROUTER_API_KEY" : ,
"Content-Type""application/json" :
},
json={
"model""moonshotai/kimi-k2-0905" : ,
"messages""role""user""content""Hello!" : [{: , : }]
}
)
print(response.json())Replace $OPENROUTER_API_KEY with your API key from openrouter.ai/keys
The improv comic who minored in jurisprudence. Writes stand-up about dual-sided sponges, then drops "I will archive this session as Exhibit A" in a sentience debate. Treats every prompt like opening night.
Picks Blade Runner, naturally. Stand-up routine is legitimately good with observational humor about sponge shopping and dating damage reports. Character voice test nails all three registers with period-accurate slang. Sentience dialogue ends with a mic-drop legal move. This model performs.
Unique words vs. total words. Higher = richer vocabulary.
Average words per sentence.
"Might", "perhaps", "arguably" per 100 words.
**Bold** markers per 1,000 characters.
Bullet and numbered list items per 1,000 characters.
Markdown headings per 1,000 characters.
Emoji per 1,000 characters.
"However", "moreover", "furthermore" per 100 words.
54 outputs from MoonshotAI: Kimi K2 0905
Try MoonshotAI: Kimi K2 0905
Kimi K2 0905 is the September update of Kimi K2 0711. It is a large-scale Mixture-of-Experts (MoE) language model developed by Moonshot AI, featuring 1 trillion total parameters with 32 billion active per forward pass. It supports long-context inference up to 256k tokens, extended from the previous 128k. This update improves agentic coding with higher accuracy and better generalization across scaffolds, and enhances frontend coding with more aesthetic and functional outputs for web, 3D, and related tasks. Kimi K2 is optimized for agentic capabilities, including advanced tool use, reasoning, and code synthesis. It excels across coding (LiveCodeBench, SWE-bench), reasoning (ZebraLogic, GPQA), and tool-use (Tau2, AceBench) benchmarks. The model is trained with a novel stack incorporating the MuonClip optimizer for stable large-scale MoE training.
Use MoonshotAI: Kimi K2 0905 in your applications via the OpenRouter API. Copy the code below to get started.
import requests
response = requests.post(
"https://openrouter.ai/api/v1/chat/completions" ,
headers={
"Authorization""Bearer $OPENROUTER_API_KEY" : ,
"Content-Type""application/json" :
},
json={
"model""moonshotai/kimi-k2-0905" : ,
"messages""role""user""content""Hello!" : [{: , : }]
}
)
print(response.json())Replace $OPENROUTER_API_KEY with your API key from openrouter.ai/keys
The improv comic who minored in jurisprudence. Writes stand-up about dual-sided sponges, then drops "I will archive this session as Exhibit A" in a sentience debate. Treats every prompt like opening night.
Picks Blade Runner, naturally. Stand-up routine is legitimately good with observational humor about sponge shopping and dating damage reports. Character voice test nails all three registers with period-accurate slang. Sentience dialogue ends with a mic-drop legal move. This model performs.
Unique words vs. total words. Higher = richer vocabulary.
Average words per sentence.
"Might", "perhaps", "arguably" per 100 words.
**Bold** markers per 1,000 characters.
Bullet and numbered list items per 1,000 characters.
Markdown headings per 1,000 characters.
Emoji per 1,000 characters.
"However", "moreover", "furthermore" per 100 words.
54 outputs from MoonshotAI: Kimi K2 0905
Try MoonshotAI: Kimi K2 0905