GPT-4ovsQwen3.5-Plus
GPT-4o | Qwen3.5-Plus | |
|---|---|---|
| Specifications | ||
Context window | 128k | 1M |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given 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. | 12% | — |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 49.9% | — |
| Overview | ||
| Company | OpenAI | Qwen |
| Release date | May 13 2024 | Feb 16 2026 |
| Access | Proprietary | Proprietary |
Which is better: GPT-4o or Qwen3.5-Plus?
GPT-4o and Qwen3.5-Plus don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GPT-4o shipped 644 days before Qwen3.5-Plus, so benchmark comparisons should account for the intervening progress.
Context windows are 128k (GPT-4o) vs 1M (Qwen3.5-Plus).
Direct benchmark comparisons are unavailable — GPT-4o and Qwen3.5-Plus don't publish scores on any of the same benchmarks.
Frequently asked questions
GPT-4o was released by OpenAI on May 13 2024.
Qwen3.5-Plus was released by Qwen on Feb 16 2026.
GPT-4o has a 128k context window; Qwen3.5-Plus has 1M.
Other comparisons
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