Compare AI models
| Specifications | ||
ParametersThe learned values that shape how a model responds. B means billion and T means trillion. For mixture-of-experts models, the total count is larger than the number active for each token. Parameter count alone does not measure quality. | 5.1B/8B/26B/31B | 2.8T |
Context windowHow much information the model can work with in one request, measured in tokens — pieces of words or other data. This includes your question, attachments, conversation and reply. Limits can vary by model variant and provider. | — | 1M |
| API pricingUSD per 1M tokens · lower wins | ||
Cheapest inputLowest input rate across every provider on OpenRouter, the lab included. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page. | $0.042Darkbloom | — |
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input. | $0.22Darkbloom | — |
| $19.40Darkbloom | — | |
| 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. | 25% | — |
Humanity's Last Exam · with toolsMultidisciplinary reasoning — Humanity's Last Exam — extremely hard expert questions across many subjects. “With tools” means the AI is allowed to search the web or run code while answering. Higher is better. | 26.5% | — |
| Overview | ||
| Company | Moonshot AI | |
| Release date | Apr 2 2026 | Oct 23 2026 |
| Access | Open Weight | Closed |
| Model details | View model | View model |
Other comparisons
Gemma 4vsClaude Haiku 5.5Kimi K3.1 Pro HighspeedvsClaude Haiku 5.5Gemma 4vsGPT-6.1 SolKimi K3.1 Pro HighspeedvsGPT-6.1 SolGemma 4vsMuse Spark OpenKimi K3.1 Pro HighspeedvsMuse Spark OpenGemma 4vsGrok 4.7Kimi K3.1 Pro HighspeedvsGrok 4.7Gemma 4vsDeepSeek-V4.1-Flash-1017Kimi K3.1 Pro HighspeedvsDeepSeek-V4.1-Flash-1017Gemma 4vsMistral Large 4Kimi K3.1 Pro HighspeedvsMistral Large 4Frequently asked questions
Gemma 4 and Kimi K3.1 Pro Highspeed don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemma 4 shipped 204 days before Kimi K3.1 Pro Highspeed, so benchmark comparisons should account for the intervening progress.
Gemma 4 has 5.1B/8B/26B/31B parameters, while Kimi K3.1 Pro Highspeed has 2.8T. Gemma 4 is open weight, while Kimi K3.1 Pro Highspeed is closed.
Direct benchmark comparisons are unavailable — Gemma 4 and Kimi K3.1 Pro Highspeed don't publish scores on any of the same benchmarks.