Home › Compare › Anthropic: Claude Opus 5.5 vs Google: Gemini 4 Argon
Anthropic: Claude Opus 5.5 vs Google: Gemini 4 Argon: API Pricing Compared
Comparing Anthropic: Claude Opus 5.5 and Google: Gemini 4 Argon: on combined input+output list price, Google: Gemini 4 Argon is cheaper at $12 vs $24 per 1M tokens — a difference of $12 (50%). Anthropic: Claude Opus 5.5 costs $4 in / $20 out with a 1,000,000-token context; Google: Gemini 4 Argon costs $2 in / $10 out with a 1,048,576-token context.
| Anthropic: Claude Opus 5.5 | Google: Gemini 4 Argon | |
|---|---|---|
| Input /1M | $4 | $2 |
| Output /1M | $20 | $10 |
| Cached input /1M | $0.2 | $0.1 |
| Context window | 1,000,000 | 1,048,576 |
| Max output tokens | 128,000 | 943,718 |
| Cost @ 10M in + 2M out / mo | $80 | $40 |
Estimate your own workload in the cost calculator, or open the full pages for Anthropic: Claude Opus 5.5 and Google: Gemini 4 Argon.
Frequently asked questions
Which is cheaper, Anthropic: Claude Opus 5.5 or Google: Gemini 4 Argon?
Google: Gemini 4 Argon is cheaper on combined list price: $12 vs $24 per 1M tokens (input + output). At 10M input + 2M output tokens per month, Anthropic: Claude Opus 5.5 costs $80 and Google: Gemini 4 Argon costs $40.
Which has the larger context window, Anthropic: Claude Opus 5.5 or Google: Gemini 4 Argon?
Anthropic: Claude Opus 5.5 has a context window of 1,000,000 tokens; Google: Gemini 4 Argon has 1,048,576 tokens. The larger one is Google: Gemini 4 Argon.
Price snapshot October 21, 2026, refreshed daily.