Kimi K3 vs Claude Opus 4.8
Rank, tier, score and price side by side, from our weekly rankings. Scores are editorial opinion based on public sources.
A
Kimi K3
B
Claude Opus 4.8
- ProviderMoonshot AIAnthropic
- Rank#18Higher rank#21
- TierAA
- Score85.0Higher score84.7
- PriceOpen weights on Hugging Face; API $3 input / $15 output per 1M tokens ($0.30 cached input)Lower price tier$5 / $25 per 1M tokens (in/out)
- TaglineMoonshot AI's 2.8T-parameter mixture-of-experts model and the highest-scoring open-weight entry on the Artificial Analysis Intelligence Index.An earlier Anthropic Opus release (May 2026), strong across coding, reasoning and long-context knowledge work; since followed by Opus 5 and 5.5.
| Attribute | Kimi K3 | Claude Opus 4.8 |
|---|---|---|
| Provider | Moonshot AI | Anthropic |
| Rank | #18Higher rank | #21 |
| Tier | A | A |
| Score | 85.0Higher score | 84.7 |
| Price | Open weights on Hugging Face; API $3 input / $15 output per 1M tokens ($0.30 cached input)Lower price tier | $5 / $25 per 1M tokens (in/out) |
| Tagline | Moonshot AI's 2.8T-parameter mixture-of-experts model and the highest-scoring open-weight entry on the Artificial Analysis Intelligence Index. | An earlier Anthropic Opus release (May 2026), strong across coding, reasoning and long-context knowledge work; since followed by Opus 5 and 5.5. |