DeepSeek-V4-Pro vs Kimi K2.6
DeepSeek DeepSeek-V4-Pro | Moonshot AI Kimi K2.6 | |
|---|---|---|
| Overview | ||
| Company | DeepSeek | Moonshot AI |
| Release date | Apr 24 2026 | Apr 21 2026 |
| Access | Open Weight | Open Weight |
| Specifications | ||
Parameters | — | 1T |
Context window | — | 256k |
| 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. | 14% | 65%Best |
Coding SWE-Bench VerifiedReal 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. | — | 80.2% |
Agentic coding CursorBench v3.1Cursor's own test of harder, real-world coding tasks inside a code editor. Higher is better. | — | 47.6% |
Next.js coding Next.js EvalsVercel's open eval of how well AI coding agents build and migrate real Next.js apps — measured as the share of tasks the agent completes successfully. Higher is better. | — | 67% |
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. | 93.5%Best | 89.6% |
Web browsing BrowseCompCan the AI browse the web and track down hard-to-find answers? Higher is better. | 83.4% | — |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 90.1% | 90.5%Best |
Community preference (code) Arena Elo (Code)Like the text arena, but people vote on which AI writes better code. The votes become a chess-style Elo rating on arena.ai. Higher is better. | 1457 | 1513Best |
| Timeline | ||
| Release gap | Kimi K2.6 shipped 3 days before DeepSeek-V4-Pro | |
Which is better: DeepSeek-V4-Pro or Kimi K2.6?
Kimi K2.6 leads DeepSeek-V4-Pro on 3 of the 4 benchmarks they both report (BullshitBench v2, LiveCodeBench, GPQA Diamond, Arena Elo (Code)). Kimi K2.6 shipped 3 days before DeepSeek-V4-Pro, 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 BullshitBench v2, Kimi K2.6 leads at 65% vs DeepSeek-V4-Pro at 14%. On LiveCodeBench, DeepSeek-V4-Pro leads at 93.5% vs Kimi K2.6 at 89.6%. On GPQA Diamond, Kimi K2.6 leads at 90.5% vs DeepSeek-V4-Pro at 90.1%. On Arena Elo (Code), Kimi K2.6 leads at 1513 vs DeepSeek-V4-Pro at 1457.
Frequently asked questions
DeepSeek-V4-Pro was released by DeepSeek on Apr 24 2026.
Kimi K2.6 was released by Moonshot AI on Apr 21 2026.
DeepSeek-V4-Pro leads on LiveCodeBench — DeepSeek-V4-Pro 93.5% vs Kimi K2.6 89.6%.
Kimi K2.6 leads on GPQA Diamond — DeepSeek-V4-Pro 90.1% vs Kimi K2.6 90.5%.