Grok 4.5 vs Kimi K3
Rank, tier, score and price side by side, from our weekly rankings. Scores are editorial opinion based on public sources.
A
Grok 4.5
B
Kimi K3
- ProviderxAIMoonshot AI
- Rank#24#18Higher rank
- TierAA
- Score83.885.0Higher score
- PriceAPI $2 input / $6 output per 1M tokens (prompts under 200K; $4 / $12 above); also in Grok subscriptionsOpen weights on Hugging Face; API $3 input / $15 output per 1M tokens ($0.30 cached input)
- TaglinexAI's 2026 frontier release pairing native tool use with real-time search.Moonshot AI's 2.8T-parameter mixture-of-experts model and the highest-scoring open-weight entry on the Artificial Analysis Intelligence Index.
| Attribute | Grok 4.5 | Kimi K3 |
|---|---|---|
| Provider | xAI | Moonshot AI |
| Rank | #24 | #18Higher rank |
| Tier | A | A |
| Score | 83.8 | 85.0Higher score |
| Price | API $2 input / $6 output per 1M tokens (prompts under 200K; $4 / $12 above); also in Grok subscriptions | Open weights on Hugging Face; API $3 input / $15 output per 1M tokens ($0.30 cached input) |
| Tagline | xAI's 2026 frontier release pairing native tool use with real-time search. | Moonshot AI's 2.8T-parameter mixture-of-experts model and the highest-scoring open-weight entry on the Artificial Analysis Intelligence Index. |