DeepSeek-V4-Flash vs Kimi K3
DeepSeek DeepSeek-V4-Flash | Moonshot AI Kimi K3 | |
|---|---|---|
| Overview | ||
| Company | DeepSeek | Moonshot AI |
| Release date | Apr 24 2026 | Jul 16 2026 |
| Access | Open Weight | Open Weight |
| Specifications | ||
Parameters | — | 2.8T |
Context window | — | 1M |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given 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. | 18% | — |
Agentic coding DeepSWE 1.0Artificial Analysis' independent test of deep, agentic software-engineering work — the AI has to plan and carry out substantial coding tasks end to end. Higher is better. | — | 67.5% |
Competitive coding LiveCodeBenchCoding problems published so recently the AI can't have seen them in training — a contamination-free test of raw programming skill. Higher is better. | 91.6% | — |
Agentic terminal coding Terminal-Bench 2.1Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Higher is better. | — | 88.3% |
Multi-step tool use MCP AtlasCan the AI chain together many tools and steps to complete one bigger task, rather than doing just a single thing? Higher is better. | — | 84.2% |
Professional tool use JobBenchTests the AI on professional workplace tasks that require using real work tools — the kind of multi-step jobs an office worker handles. Higher is better. | — | 52.9% |
Personal tool use Toolathlon-VerifiedTests how well the AI uses everyday personal tools and apps to get things done — a human-checked version of Toolathlon. Higher is better. | — | 73.2% |
Web browsing BrowseCompCan the AI browse the web and track down hard-to-find answers? Higher is better. | — | 91.2% |
Multidisciplinary reasoning Humanity's Last Exam · no toolsHumanity's Last Exam — extremely hard expert questions across many subjects, written so you can't just look up the answer. “No tools” means the AI answers on its own. Higher is better. | — | 43.5% |
Multidisciplinary reasoning Humanity's Last Exam · with toolsHumanity'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. | — | 56% |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 88.1% | 93.5%Best |
Knowledge work GDPval-AA v2economically valuable knowledge work (v2, re-based Elo) | — | 1668 |
Chart reasoning CharXiv ReasoningCan the AI read and reason about complex charts and figures, not just text? Higher is better. | — | 84.8% |
Multimodal reasoning MMMU-ProA tougher version of MMMU — college-level questions that mix images, diagrams, and text together. Higher is better. | — | 81.6% |
| Timeline | ||
| Release gap | DeepSeek-V4-Flash shipped 83 days before Kimi K3 | |
Which is better: DeepSeek-V4-Flash or Kimi K3?
Kimi K3 leads DeepSeek-V4-Flash on 1 of the 1 benchmark they both report (GPQA Diamond). DeepSeek-V4-Flash shipped 83 days before Kimi K3, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
On GPQA Diamond, Kimi K3 leads at 93.5% vs DeepSeek-V4-Flash at 88.1%.
Frequently asked questions
DeepSeek-V4-Flash was released by DeepSeek on Apr 24 2026.
Kimi K3 was released by Moonshot AI on Jul 16 2026.
Kimi K3 leads on GPQA Diamond — DeepSeek-V4-Flash 88.1% vs Kimi K3 93.5%.
Other comparisons
DeepSeek-V4-Flash vs Claude Sonnet 5Kimi K3 vs Claude Sonnet 5DeepSeek-V4-Flash vs GPT-5.6 SolKimi K3 vs GPT-5.6 SolDeepSeek-V4-Flash vs Gemini 3.5 FlashKimi K3 vs Gemini 3.5 FlashDeepSeek-V4-Flash vs Muse Spark 1.1Kimi K3 vs Muse Spark 1.1DeepSeek-V4-Flash vs Grok 4.5Kimi K3 vs Grok 4.5DeepSeek-V4-Flash vs Mistral Medium 3.5Kimi K3 vs Mistral Medium 3.5