Claude Sonnet 4.6 vs Qwen3.5 Plus 2026-02-15
| Signal | Claude Sonnet 4.6 | Delta | Qwen3.5 Plus 2026-02-15 |
|---|---|---|---|
Capabilities | 100 | +17 | |
Benchmarks | 82 | +82 | |
Pricing | 85 | -13 | |
Context window size | 95 | -- | |
Recency | 100 | -- | |
Output Capacity | 85 | +5 | |
| Overall Result | 3 wins | of 6 | 1 wins |
Score History
85.2
current score
Claude Sonnet 4.6
right now
68.2
current score
Claude Sonnet 4.6
Anthropic
Qwen3.5 Plus 2026-02-15
Alibaba
Qwen3.5 Plus 2026-02-15 saves you $946.00/month
That's $11352.00/year compared to Claude Sonnet 4.6 at your current usage level of 100K calls/month.
| Metric | Claude Sonnet 4.6 | Qwen3.5 Plus 2026-02-15 | Winner |
|---|---|---|---|
| Overall Score | 85 | 68 | Claude Sonnet 4.6 |
| Rank | #66 | #171 | Claude Sonnet 4.6 |
| Quality Rank | #66 | #171 | Claude Sonnet 4.6 |
| Adoption Rank | #66 | #171 | Claude Sonnet 4.6 |
| Parameters | -- | -- | -- |
| Context Window | 1000K | 1000K | -- |
| Pricing | $3.00/$15.00/M | $0.26/$1.56/M | -- |
| Signal Scores | |||
| Capabilities | 100 | 83 | Claude Sonnet 4.6 |
| Benchmarks | 82 | -- | Claude Sonnet 4.6 |
| Pricing | 85 | 98 | Qwen3.5 Plus 2026-02-15 |
| Context window size | 95 | 95 | Claude Sonnet 4.6 |
| Recency | 100 | 100 | Claude Sonnet 4.6 |
| Output Capacity | 85 | 80 | Claude Sonnet 4.6 |
Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.
Scores 85/100 (rank #66), placing it in the top 78% of all 290 models tracked.
Scores 68/100 (rank #171), placing it in the top 41% of all 290 models tracked.
Claude Sonnet 4.6 has a 17-point advantage, which typically translates to noticeably stronger performance on complex reasoning, code generation, and multi-step tasks.
Choose Claude Sonnet 4.6 when you need:
- Step-by-step reasoning and chain-of-thought problem solving
Choose Qwen3.5 Plus 2026-02-15 when you need:
- High-volume production workloads where API costs must be minimized
- Step-by-step reasoning and chain-of-thought problem solving
Qwen3.5 Plus 2026-02-15 offers 90% better value per quality point. At 1M tokens/day, you'd spend $27.30/month with Qwen3.5 Plus 2026-02-15 vs $270.00/month with Claude Sonnet 4.6 - a $242.70 monthly difference.
Both models have comparable response speeds. For most applications, the latency difference is negligible.
When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.
Code generation & review
Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Suitable for user-facing chat with competitive response times. Qwen3.5 Plus 2026-02-15 also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (1000K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($1.56/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (85/100) correlates with better nuance, coherence, and style in long-form content
Image understanding & OCR
Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly
Claude Sonnet 4.6 clearly outperforms Qwen3.5 Plus 2026-02-15 with a significant 17-point lead. For most general use cases, Claude Sonnet 4.6 is the stronger choice. However, Qwen3.5 Plus 2026-02-15 may still excel in niche scenarios.
By Use Case
Best for Quality
Claude Sonnet 4.6
Marginally better benchmark scores; both are excellent
Best for Cost
Qwen3.5 Plus 2026-02-15
90% lower pricing; better value at scale
Best for Reliability
Claude Sonnet 4.6
Higher uptime and faster response speeds
Best for Prototyping
Claude Sonnet 4.6
Stronger community support and better developer experience
Best for Production
Claude Sonnet 4.6
Wider enterprise adoption and proven at scale
by Anthropic
- Choose for Quality - Marginally better benchmark scores; both are excellent
- Choose for Reliability - Higher uptime and faster response speeds
- Choose for Prototyping - Stronger community support and better developer experience
- Choose for Production - Wider enterprise adoption and proven at scale
| Capability | Claude Sonnet 4.6 | Qwen3.5 Plus 2026-02-15 |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Searchdiffers | ||
| Image Output |
Claude Sonnet 4.6
Anthropic
Qwen3.5 Plus 2026-02-15
Alibaba
Qwen3.5 Plus 2026-02-15 saves you $21.06/month
That's 90% cheaper than Claude Sonnet 4.6 at 1,000 tokens/request and 100 requests/day.
Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.
| Parameter | Claude Sonnet 4.6 | Qwen3.5 Plus 2026-02-15 |
|---|---|---|
| Context Window | 1M | 1M |
| Max Output Tokens | 128,000 | 65,536 |
| Open Source | No | No |
| Created | Feb 17, 2026 | Feb 16, 2026 |