Kimi K2.6 (Moonshot)
Free tier available
- Self-hosted (Free)$0
- API (Moonshot direct, K2.6)$0.60/per 1M input tokens
- API (OpenRouter, K2.6 blended)~$0.95/per 1M input tokens
Our pickKimi K2.6 (Moonshot)

Notion AI
Tier-list head-to-head. Kimi K2.6 (Moonshot) takes the A-tier slot — here's the breakdown.
Spec sheet
| Tier | A-tierwin | B-tier |
| Overall score | 8.1 / 10win | 7.0 / 10 |
| Free tier | Yeswin | No |
| Starting price | $0 | $10 |
| Best for | Agentic coding workflows, tool-use agents, and teams willing to pay hosted-API prices for frontier-tier qua… | Teams already deep in Notion who want AI assistance without adding another tool to the stack. |
| Last reviewed | 2026-05-13 | 2026-05-19 |
Head-to-head
Rated 1-10 on the same rubric across all 130 tools we cover.
What you'll pay
Look past the headline number -- entry-tier limits drive most cost surprises.
Free tier available
No free tier
Kimi K2.6 (1T/32B active MoE) -- Artificial Analysis Intelligence Index v4.0 score 54 (#1 open-weights, #4 overall as of 2026-04-27). MMLU/GPQA/AIME shown below are K2.5-baseline numbers retained until K2.6-specific third-party runs publish benchmarks — Notion AI has no published benchmarks
| Benchmark | Description | Score |
|---|---|---|
| SWE-Bench Pro | 58.6% | |
| MMLU-Pro (K2.5 baseline) | 84.8% | |
| GPQA Diamond (K2.5 baseline) | 80.5% | |
| AIME 2025 (K2.5 baseline) | 91.2% | |
| LiveCodeBench (K2.5 baseline) | 74.1% |
The decision
Use-case anchors and category strengths, side by side.
Agentic coding workflows, tool-use agents, and teams willing to pay hosted-API prices for frontier-tier quality with open-weights licensing protection.
Visit Kimi K2.6 (Moonshot)Teams already deep in Notion who want AI assistance without adding another tool to the stack.
Visit Notion AIBottom line
Kimi K2.6 (Moonshot) is the clear winner: 8.1/10 (A-tier) versus 7.0/10 (B-tier). Notion AI isn't a bad tool, but on every category that drives the overall score, Kimi K2.6 (Moonshot) comes out ahead. The tier gap is repeatable -- not methodology noise -- and the day-to-day experience reflects it.
On pricing, Kimi K2.6 (Moonshot) starts free while Notion AI requires a paid plan from day one ($10+). If you're testing the waters or running an occasional workload, that gap matters more than the score differential. Kimi K2.6 (Moonshot) starts at $0; Notion AI starts at $10. Compare what each entry tier actually unlocks before you compare list prices -- the limits matter more than the headline number.
By use case: pick Kimi K2.6 (Moonshot) when agentic coding workflows, tool-use agents, and teams willing to pay hosted-api prices for frontier-tier quality with open-weights licensing protection. Pick Notion AI when teams already deep in notion who want ai assistance without adding another tool to the stack. The two tools aren't fighting for the same person -- they're aiming at adjacent jobs that occasionally overlap. If you're squarely in Kimi K2.6 (Moonshot)'s lane, the tier-list ranking and the use-case fit point the same direction; if you're in Notion AI's lane, the score gap matters less than the fit.
Bottom line: Kimi K2.6 (Moonshot) is the better tool for most people right now. Pick Notion AI only when teams already deep in notion who want ai assistance without adding another tool to the stack -- that's its lane, and inside that lane it still earns its place.
Keep digging
Full Kimi K2.6 (Moonshot) review
Tier A · 8.1/10
Full Notion AI review
Tier B · 7.0/10
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Built from our daily AI-tool sweep, last touched May 19, 2026. Honest tier-list reviews — no affiliate-link pieces disguised as advice. See the rubric or how we review.