Kimi K3.1 Pro vs Claude Opus 5
Rank, tier, score and price side by side, from our weekly rankings. Scores are editorial opinion based on public sources.
A
Kimi K3.1 Pro
B
Claude Opus 5
- ProviderMoonshot AIAnthropic
- Rank#6Higher rank#8
- TierSS
- Score91.6Higher score88.0
- PriceAPI about $2 input / $10 output per 1M tokens via the Kimi API (per Artificial Analysis); open weights due by Nov 4, 2026Lower price tierAPI $5 input / $25 output per 1M tokens; listed as a legacy model in Claude plans
- TaglineMoonshot AI's flagship Kimi model (October 2026) for long-horizon coding and knowledge work, with native vision and a 1M-token context window.Anthropic's previous-generation Opus model (July 2026), succeeded by Opus 5.5 in September 2026, with adaptive reasoning effort levels.
| Attribute | Kimi K3.1 Pro | Claude Opus 5 |
|---|---|---|
| Provider | Moonshot AI | Anthropic |
| Rank | #6Higher rank | #8 |
| Tier | S | S |
| Score | 91.6Higher score | 88.0 |
| Price | API about $2 input / $10 output per 1M tokens via the Kimi API (per Artificial Analysis); open weights due by Nov 4, 2026Lower price tier | API $5 input / $25 output per 1M tokens; listed as a legacy model in Claude plans |
| Tagline | Moonshot AI's flagship Kimi model (October 2026) for long-horizon coding and knowledge work, with native vision and a 1M-token context window. | Anthropic's previous-generation Opus model (July 2026), succeeded by Opus 5.5 in September 2026, with adaptive reasoning effort levels. |