Compare · ModelsLive · 2 picked · head to head
GPT-4.5 vs Qwen3.5-Flash
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Qwen3.5-Flash wins on 2/2 benchmarks
Qwen3.5-Flash wins 2 of 2 shared benchmarks. Leads in knowledge · math.
Category leads
knowledge·Qwen3.5-Flashmath·Qwen3.5-Flash
Hype vs Reality
Attention vs performance
GPT-4.5
#232 by perf·no signal
Qwen3.5-Flash
#245 by perf·#1 by attention
Vendor risk
Who is behind the model
OpenAI
$840.0B·Tier 1
Alibaba (Qwen)
$293.0B·Tier 1
Head to head
2 benchmarks · 2 models
GPT-4.5Qwen3.5-Flash
GPQA diamond
Qwen3.5-Flash leads by +18.9
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
GPT-4.5
60.7
Qwen3.5-Flash
79.6
OTIS Mock AIME 2024-2025
Qwen3.5-Flash leads by +46.7
OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills.
GPT-4.5
37.7
Qwen3.5-Flash
84.4
Full benchmark table
| Benchmark | GPT-4.5 | Qwen3.5-Flash |
|---|---|---|
GPQA diamond Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs. | 60.7 | 79.6 |
OTIS Mock AIME 2024-2025 OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills. | 37.7 | 84.4 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| n/a | n/a | n/a | n/a | |
| $0.07 | $0.26 | 1.0M tokens (~500 books) | $1.14 |