Claude 3.5 Sonnet (upgraded)vsQwen3.6-Plus
Claude 3.5 Sonnet (upgraded) | Qwen3.6-Plus | |
|---|---|---|
| API pricingUSD per 1M tokens · lower wins · base tier | ||
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it. | — | $0.50 |
Output priceWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one. | — | $3.00 |
| Benchmarks | ||
SWE-Bench VerifiedCoding — Real coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | 49% | 78.8% |
| BenchmarksPublished by one model only | ||
BullshitBench v2Nonsense detection — Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | — | 72% |
Humanity's Last Exam · with toolsMultidisciplinary reasoning — Humanity's Last Exam — extremely hard expert questions across many subjects. “With tools” means the AI is allowed to search the web or run code while answering. Higher is better. | — | 28.8% |
| Overview | ||
| Company | Anthropic | Qwen |
| Release date | Oct 22 2024 | Apr 2 2026 |
| Access | Proprietary | Proprietary |
Other comparisons
Frequently asked questions
Qwen3.6-Plus leads Claude 3.5 Sonnet (upgraded) on 1 of the 1 benchmark they both report (SWE-Bench Verified). Only Qwen3.6-Plus has a verified first-party API price: $0.50 per million input tokens and $3.00 per million output tokens. No pay-as-you-go API rate is tracked for Claude 3.5 Sonnet (upgraded). Claude 3.5 Sonnet (upgraded) shipped 527 days before Qwen3.6-Plus, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
On SWE-Bench Verified, Qwen3.6-Plus leads at 78.8% vs Claude 3.5 Sonnet (upgraded) at 49%.
Claude 3.5 Sonnet (upgraded) was released by Anthropic on Oct 22 2024.
Qwen3.6-Plus was released by Qwen on Apr 2 2026.
Qwen3.6-Plus leads on SWE-Bench Verified — Claude 3.5 Sonnet (upgraded) 49% vs Qwen3.6-Plus 78.8%.
Only Qwen3.6-Plus has a verified first-party API price: $0.50 per million input tokens and $3.00 per million output tokens. No pay-as-you-go API rate is tracked for Claude 3.5 Sonnet (upgraded). Rates are pay-as-you-go API prices verified on August 18, 2026.