Claude Sonnet 4.5 vs Qwen3.6 Plus
Claude Sonnet 4.5 and Qwen3.6 Plus are closely matched at 32.1 and 39.4 on the LLM Stats Score. Qwen3.6 Plus is 5.3x cheaper per token.
Anthropic · Alibaba Cloud / Qwen Team · Updated for 2026
Which is better?
Claude Sonnet 4.5 and Qwen3.6 Plus are closely matched on the overall LLM Stats Score at 32.1 and 39.4.
In the 2 individual benchmarks reported for both models, Qwen3.6 Plus wins 2; this is a narrower head-to-head signal than the composite indexes.
On price, Qwen3.6 Plus is roughly 5.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Qwen3.6 Plus also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Claude Sonnet 4.5
- you want predictable pricing at $3.00/M input and $15.00/M output
Choose Qwen3.6 Plus
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 2 of 2 exact shared results
- cost matters — it's about 5.3x cheaper per token
- you process long inputs — it offers a 1,000,000 token context window
- you want the most recent training data — it shipped Mar 2026
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
9 reported for Claude Sonnet 4.5 · 65 for Qwen3.6 Plus
Claude Sonnet 4.5 outperforms in 0 benchmarks, while Qwen3.6 Plus is better at 2 benchmarks (GPQA, MMMLU).
Qwen3.6 Plus significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Claude Sonnet 4.5 ($3.00/1M tokens) is 6.0x more expensive than Qwen3.6 Plus ($0.50/1M tokens).
For output processing, Claude Sonnet 4.5 ($15.00/1M tokens) is 5.0x more expensive than Qwen3.6 Plus ($3.00/1M tokens).
In conclusion, Claude Sonnet 4.5 is more expensive than Qwen3.6 Plus.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Qwen3.6 Plus accepts 1,000,000 input tokens compared to Claude Sonnet 4.5's 200,000 tokens. Qwen3.6 Plus can generate longer responses up to 65,536 tokens, while Claude Sonnet 4.5 is limited to 64,000 tokens.
Input capabilities
Documented input modalities across available providers
Both Claude Sonnet 4.5 and Qwen3.6 Plus support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude Sonnet 4.5
Qwen3.6 Plus
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Claude Sonnet 4.5 was released on 2025-09-29, while Qwen3.6 Plus was released on 2026-03-31.
Qwen3.6 Plus is 6 months newer than Claude Sonnet 4.5.
Sep 29, 2025
1.0 years ago
Mar 31, 2026
6 months ago
6mo newerKnowledge Cutoff
When training data ends
Claude Sonnet 4.5 has a documented knowledge cutoff of 2025-01-31, while Qwen3.6 Plus's cutoff date is not specified.
We can confirm Claude Sonnet 4.5's training data extends to 2025-01-31, but cannot make a direct comparison without Qwen3.6 Plus's cutoff date.
Jan 2025
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Provider Availability
Claude Sonnet 4.5 is available from Anthropic. Qwen3.6 Plus is available from Novita, Together.
Claude Sonnet 4.5
Qwen3.6 Plus
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude Sonnet 4.5 and Qwen3.6 Plus side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude Sonnet 4.5 vs Qwen3.6 Plus.