Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It is particularly strong at multi-step changes in large codebases, code...
Model details →Anthropic: Claude Opus 5.5 vs Google: Nano Banana 2.1
Google: Nano Banana 2.1 wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
Nano Banana 2.1 (Gemini Nano Banana 2.1) is Google's image generation and editing model on the Flash tier, succeeding Nano Banana 2 and Nano Banana Pro. It improves product recontextualization,...
Model details →Side-by-side comparison
| Capability | Anthropic: Claude Opus 5.5 | Google: Nano Banana 2.1 | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1M | 66K | 🏆 Anthropic: Claude Opus 5.5 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $4.00 | $1.50 | 🏆 Google: Nano Banana 2.1 |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $20.00 | $7.50 | 🏆 Google: Nano Banana 2.1 |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Anthropic: Claude Opus 5.5 better than Google: Nano Banana 2.1?
Google: Nano Banana 2.1 wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Anthropic: Claude Opus 5.5 and Google: Nano Banana 2.1?
Input: $4.00 vs $1.50 per 1M tokens. Output: $20.00 vs $7.50 per 1M tokens.
What context windows do Anthropic: Claude Opus 5.5 and Google: Nano Banana 2.1 support?
Anthropic: Claude Opus 5.5 supports up to 1M tokens. Google: Nano Banana 2.1 supports up to 66K tokens.
Do both Anthropic: Claude Opus 5.5 and Google: Nano Banana 2.1 support tool calling?
Anthropic: Claude Opus 5.5: yes. Google: Nano Banana 2.1: yes.