Claude Opus 5 vs Kimi K3.1 Pro
Rank, tier, score and price side by side, from our weekly rankings. Scores are editorial opinion based on public sources.
A
Claude Opus 5
B
Kimi K3.1 Pro
- ProviderAnthropicMoonshot AI
- Rank#8#6Higher rank
- TierSS
- Score88.091.6Higher score
- PriceAPI $5 input / $25 output per 1M tokens; listed as a legacy model in Claude plansAPI about $2 input / $10 output per 1M tokens via the Kimi API (per Artificial Analysis); open weights due by Nov 4, 2026Lower price tier
- TaglineAnthropic's previous-generation Opus model (July 2026), succeeded by Opus 5.5 in September 2026, with adaptive reasoning effort levels.Moonshot AI's flagship Kimi model (October 2026) for long-horizon coding and knowledge work, with native vision and a 1M-token context window.
| Attribute | Claude Opus 5 | Kimi K3.1 Pro |
|---|---|---|
| Provider | Anthropic | Moonshot AI |
| Rank | #8 | #6Higher rank |
| Tier | S | S |
| Score | 88.0 | 91.6Higher score |
| Price | API $5 input / $25 output per 1M tokens; listed as a legacy model in Claude plans | 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 |
| Tagline | Anthropic's previous-generation Opus model (July 2026), succeeded by Opus 5.5 in September 2026, with adaptive reasoning effort levels. | Moonshot AI's flagship Kimi model (October 2026) for long-horizon coding and knowledge work, with native vision and a 1M-token context window. |