Claude Opus 5.5 vs Gemini 4 Argon
Rank, tier, score and price side by side, from our weekly rankings. Scores are editorial opinion based on public sources.
A
Claude Opus 5.5
B
Gemini 4 Argon
- ProviderAnthropicGoogle
- Rank#1Higher rank#4
- TierSS
- Score94.5Higher score92.2
- Price$4 input / $20 output per 1M tokens (API); included in Claude Pro, Max, Team and Enterprise plansAPI $2 input / $10 output per 1M tokens through Nov 30, 2026 ($4 / $20 from Dec 1, 2026)Lower price tier
- TaglineAnthropic'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.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.
| Attribute | Claude Opus 5.5 | Gemini 4 Argon |
|---|---|---|
| Provider | Anthropic | |
| Rank | #1Higher rank | #4 |
| Tier | S | S |
| Score | 94.5Higher score | 92.2 |
| Price | $4 input / $20 output per 1M tokens (API); included in Claude Pro, Max, Team and Enterprise plans | API $2 input / $10 output per 1M tokens through Nov 30, 2026 ($4 / $20 from Dec 1, 2026)Lower price tier |
| Tagline | 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. | 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. |