Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows. It delivers state-of-the-art performance on coding benchmarks such as SWE-bench Verified, with...
Model details →Anthropic: Claude Sonnet 4.5 (batch) vs Google: Nano Banana 2 (Gemini 3.1 Flash Image)
Anthropic: Claude Sonnet 4.5 (batch) and Google: Nano Banana 2 (Gemini 3.1 Flash Image) are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
Gemini 3.1 Flash Image, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines advanced...
Model details →Side-by-side comparison
| Capability | Anthropic: Claude Sonnet 4.5 (batch) | Google: Nano Banana 2 (Gemini 3.1 Flash Image) | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1M | 131K | 🏆 Anthropic: Claude Sonnet 4.5 (batch) |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $1.50 | $0.50 | 🏆 Google: Nano Banana 2 (Gemini 3.1 Flash Image) |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $7.50 | $3.00 | 🏆 Google: Nano Banana 2 (Gemini 3.1 Flash Image) |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | — | 🏆 Anthropic: Claude Sonnet 4.5 (batch) |
| 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 Sonnet 4.5 (batch) better than Google: Nano Banana 2 (Gemini 3.1 Flash Image)?
Anthropic: Claude Sonnet 4.5 (batch) and Google: Nano Banana 2 (Gemini 3.1 Flash Image) are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
What's the price difference between Anthropic: Claude Sonnet 4.5 (batch) and Google: Nano Banana 2 (Gemini 3.1 Flash Image)?
Input: $1.50 vs $0.50 per 1M tokens. Output: $7.50 vs $3.00 per 1M tokens.
What context windows do Anthropic: Claude Sonnet 4.5 (batch) and Google: Nano Banana 2 (Gemini 3.1 Flash Image) support?
Anthropic: Claude Sonnet 4.5 (batch) supports up to 1M tokens. Google: Nano Banana 2 (Gemini 3.1 Flash Image) supports up to 131K tokens.
Do both Anthropic: Claude Sonnet 4.5 (batch) and Google: Nano Banana 2 (Gemini 3.1 Flash Image) support tool calling?
Anthropic: Claude Sonnet 4.5 (batch): yes. Google: Nano Banana 2 (Gemini 3.1 Flash Image): not advertised.
Compare Anthropic: Claude Sonnet 4.5 (batch) with other models
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