Compare / Qwen3.5-Flash vs GPT-5.4 nano
Qwen3.5-Flash vs GPT-5.4 nano
Which is cheaper, which is more capable, and which does better at each kind of work, from 10 results on 3 sources that measured both models.
Of the 10 results both models have, the better value on each. Results whose reported ranges overlap are too close to call.
Results as of 9 October 2026 (catalogue release 2026-10-09-dd620e778ac5). See also Alibaba vs OpenAI, every model from both labs.
Qwen3.5-Flash or GPT-5.4 nano? The short answer
They score about the same, so pick Qwen3.5-Flash: it costs 4.1 times less per token.
- Qwen3.5-Flash is cheaper: $0.11 against $0.46 per million tokens, 4.1 times less.
Head to head
Every fact side by side
| Qwen3.5-Flash | GPT-5.4 nano | |
|---|---|---|
| Price per million tokens | $0.065 in · $0.26 out | $0.20 in · $1.25 out |
| Blended (3 in : 1 out) | $0.11 | $0.46 |
| Cheapest host, blended | – | $0.46 (Azure) |
| Cached input, per million | – | $0.020 cached input |
| Intelligence Index | – | 20.7 |
| Spring Prompt overall | – | – |
| Output speed, tokens a second | – | – |
| Context window | 1,000,000 tokens | 400,000 tokens |
| Released | – | 17 Mar 2026 |
| Weights | Closed | Closed |
| Developer based in | China | the US |
Prices are the developer's list price where we have read it, otherwise the typical host on OpenRouter; see every model's price. Intelligence and speed from Artificial Analysis.
Which is better for what
Each model's rank among the models on sale today, for each kind of work, from our own benchmarks and licensed sources. Further right is better; the better rank is in green.
Every shared result
Each model's best result on every measure both have, grouped by benchmark, with the setting that produced it. Under each measure, every model that benchmark has measured is a grey tick, best to the right, so you can see where the two sit in the field. The headline measures of each benchmark come first; the rest are under "Show all". Green marks the better value; where a source reports ranges that overlap, neither is marked.
| Measure | Qwen3.5-Flash | GPT-5.4 nano |
|---|---|---|
| Arena (formerly LMArena) reported by Arena (formerly LMArena) · 3 results | ||
| Overall · TextArena rating, higher is better 142 · 137 of 387 measured | 1,396 | 1,401high reasoning |
| Overall · Text factualityArena rating, higher is better 123 · 117 of 163 measured | 1,414 | 1,418high reasoning |
| Business, management and finance · TextArena rating, higher is better 137 · 132 of 380 measured | 1,403 | 1,405high reasoning |
| SimpleQA Verified (Epoch AI) reported by SimpleQA Verified (Epoch AI) · 1 result | ||
| Correct answers% of questions, higher is better 64 · 72 of 76 measured | 20.3% | 11.7%high reasoning |
| Vectara Hallucination Leaderboard reported by Vectara Hallucination Leaderboard · 2 results | ||
| Hallucination rate · Vectara% of summaries, lower is better 62 · 2 of 104 measured | 10.5% | 3.1% |
| Answer rate · Vectara% of documents, higher is better 31 · 1 of 104 measured | 99.8% | 100.0% |
Show all 10 results (4 more)
| Measure | Qwen3.5-Flash | GPT-5.4 nano |
|---|---|---|
| Arena (formerly LMArena) reported by Arena (formerly LMArena) · 4 results | ||
| Creative writing · TextArena rating, higher is better 167 · 170 of 385 measured | 1,337 | 1,336high reasoning |
| Expert prompts · TextArena rating, higher is better 135 · 117 of 338 measured | 1,419 | 1,437high reasoning |
| Instruction following · TextArena rating, higher is better 148 · 139 of 387 measured | 1,381 | 1,387high reasoning |
| Writing, literature and language · TextArena rating, higher is better 149 · 156 of 386 measured | 1,367 | 1,363high reasoning |
Compare them with other models
Quick answers
Is Qwen3.5-Flash better than GPT-5.4 nano?
They score about the same, so pick Qwen3.5-Flash: it costs 4.1 times less per token.
Which is cheaper, Qwen3.5-Flash or GPT-5.4 nano?
Qwen3.5-Flash is cheaper: $0.11 against $0.46 per million tokens, 4.1 times less.
Which is better for agents and tool use, Qwen3.5-Flash or GPT-5.4 nano?
GPT-5.4 nano ranks 64 of 164 models on sale for multi-step tasks with tools: support desks, coding agents, function calls, against 143 for Qwen3.5-Flash.
Which is better for writing, Qwen3.5-Flash or GPT-5.4 nano?
GPT-5.4 nano ranks 110 of 188 models on sale for what people prefer in blind comparisons, and judged writing quality, against 115 for Qwen3.5-Flash.
Which is better for sticking to the facts, Qwen3.5-Flash or GPT-5.4 nano?
GPT-5.4 nano ranks 89 of 152 models on sale for summarising without inventing things, and factual answers, against 119 for Qwen3.5-Flash.
Which has the bigger context window, Qwen3.5-Flash or GPT-5.4 nano?
Qwen3.5-Flash: 1,000,000 tokens, against 400,000 for GPT-5.4 nano.
Run Qwen3.5-Flash and GPT-5.4 nano on your own prompt
Benchmarks aren't your data. Try both side by side in the playground, with the cost of every answer.