Compare AI models
| Specifications | ||
ParametersA rough measure of how big the model is. More parameters usually means more capable and more expensive to run, though it is a poor guide on its own — a smaller, newer model often beats a larger, older one. | 1T | 6B |
Context windowHow much text the model can hold in mind at once — your question, any documents you attach, the conversation so far, and its own reply. Go past it and the earliest part falls out of view. | 128k | — |
| API pricingUSD per 1M tokens · lower wins | ||
Cheapest inputLowest input rate across third-party providers, excluding the lab itself. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page. | $0.57Novita | — |
Cheapest outputLowest output rate across third-party providers, excluding the lab itself. May come from a different provider than the cheapest input. | $2.30Novita | — |
These models have no shared benchmark scores. | ||
BullshitBench v2Nonsense detection — Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | 10% | — |
SWE-Bench VerifiedCoding — Real coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | 65.8% | — |
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 75.1% | — |
| Overview | ||
| Company | Moonshot AI | Z.ai |
| Release date | Jul 11 2025 | Mar 14 2023 |
| Access | Open Weight | Open Weight |
| Model details | View model | View model |
Other comparisons
Kimi K2vsClaude Sonnet 5.5ChatGLM-6BvsClaude Sonnet 5.5Kimi K2vsGPT-6 SolChatGLM-6BvsGPT-6 SolKimi K2vsGemini 3.8 FlashChatGLM-6BvsGemini 3.8 FlashKimi K2vsMuse Spark 1.3ChatGLM-6BvsMuse Spark 1.3Kimi K2vsGrok 4.7ChatGLM-6BvsGrok 4.7Kimi K2vsDeepSeek-V4.1-FlashChatGLM-6BvsDeepSeek-V4.1-FlashFrequently asked questions
Kimi K2 and ChatGLM-6B don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. ChatGLM-6B shipped 850 days before Kimi K2, so benchmark comparisons should account for the intervening progress.
Kimi K2 has 1T parameters, while ChatGLM-6B has 6B.
Direct benchmark comparisons are unavailable — Kimi K2 and ChatGLM-6B don't publish scores on any of the same benchmarks.