Gemini 4 Argon vs Claude Opus 5.5
Rank, tier, score and price side by side, from our weekly rankings. Scores are editorial opinion based on public sources.
A
Gemini 4 Argon
B
Claude Opus 5.5
- ProviderGoogleAnthropic
- Rank#4#1Higher rank
- TierSS
- Score92.294.5Higher score
- PriceAPI $2 input / $10 output per 1M tokens through Nov 30, 2026 ($4 / $20 from Dec 1, 2026)Lower price tier$4 input / $20 output per 1M tokens (API); included in Claude Pro, Max, Team and Enterprise plans
- TaglineGoogle's flagship Gemini 4 reasoning model (September 30, 2026) with a 1M-token context window and very long outputs, in the Gemini app and API.Anthropic's current Opus model (September 2026), which Anthropic says performs at the level of Claude Fable 5.1 on most work at a lower price than Opus 5.
| Attribute | Gemini 4 Argon | Claude Opus 5.5 |
|---|---|---|
| Provider | Anthropic | |
| Rank | #4 | #1Higher rank |
| Tier | S | S |
| Score | 92.2 | 94.5Higher score |
| Price | API $2 input / $10 output per 1M tokens through Nov 30, 2026 ($4 / $20 from Dec 1, 2026)Lower price tier | $4 input / $20 output per 1M tokens (API); included in Claude Pro, Max, Team and Enterprise plans |
| Tagline | Google's flagship Gemini 4 reasoning model (September 30, 2026) with a 1M-token context window and very long outputs, in the Gemini app and API. | Anthropic's current Opus model (September 2026), which Anthropic says performs at the level of Claude Fable 5.1 on most work at a lower price than Opus 5. |