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 improvements across sy…
Model details →Anthropic: Claude Sonnet 4.5 vs Qwen: Qwen3 Coder Plus
Anthropic: Claude Sonnet 4.5 and Qwen: Qwen3 Coder Plus are evenly matched on 6 axes — pick the one whose provider, latency, or licensing fits your stack.
Qwen3 Coder Plus is Alibaba's proprietary version of the Open Source Qwen3 Coder 480B A35B. It is a powerful coding agent model specializing in autonomous programming via tool calling and environment interaction, combining coding proficienc…
Model details →Side-by-side comparison
| Capability | Anthropic: Claude Sonnet 4.5 | Qwen: Qwen3 Coder Plus | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1M | 1M | Tie |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $3.00 | $0.65 | 🏆 Qwen: Qwen3 Coder Plus |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $15.00 | $3.25 | 🏆 Qwen: Qwen3 Coder Plus |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | — | 🏆 Anthropic: Claude Sonnet 4.5 |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | — | 🏆 Anthropic: Claude Sonnet 4.5 |
Frequently asked questions
Is Anthropic: Claude Sonnet 4.5 better than Qwen: Qwen3 Coder Plus?
Anthropic: Claude Sonnet 4.5 and Qwen: Qwen3 Coder Plus 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 and Qwen: Qwen3 Coder Plus?
Input: $3.00 vs $0.65 per 1M tokens. Output: $15.00 vs $3.25 per 1M tokens.
What context windows do Anthropic: Claude Sonnet 4.5 and Qwen: Qwen3 Coder Plus support?
Anthropic: Claude Sonnet 4.5 supports up to 1M tokens. Qwen: Qwen3 Coder Plus supports up to 1M tokens.
Do both Anthropic: Claude Sonnet 4.5 and Qwen: Qwen3 Coder Plus support tool calling?
Anthropic: Claude Sonnet 4.5: yes. Qwen: Qwen3 Coder Plus: yes.