Compare / Qwen3-235B-A22B-Thinking-2507 vs Qwen3.5-Flash

Qwen3-235B-A22B-Thinking-2507 vs Qwen3.5-Flash

Which is cheaper, which is more capable, and which does better at each kind of work, from 8 results on 3 sources that measured both models.

AlibabaQwen3-235B-A22B-Thinking-2507 Released 25 Jul 2025 · $0.30 in · $3.00 out
AlibabaQwen3.5-Flash $0.065 in · $0.26 out
Qwen3-235B-A22B-Thinking-2507 wins 34 too close to callQwen3.5-Flash wins 1

Of the 8 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).

Qwen3-235B-A22B-Thinking-2507 or Qwen3.5-Flash? The short answer

They score about the same, so pick Qwen3.5-Flash: it costs 8.6 times less per token.

  • Qwen3.5-Flash is cheaper: $0.11 against $0.97 per million tokens, 8.6 times less.
  • On third-party benchmarks, on the results both models have: Qwen3-235B-A22B-Thinking-2507 does better for sticking to the facts; Qwen3.5-Flash for agents and tool use.

Head to head

$0.97
Price per million tokens, blendedlower is better
$0.11
131,072
Context window, tokens
1,000,000

Every fact side by side

Qwen3-235B-A22B-Thinking-2507Qwen3.5-Flash
Price per million tokens$0.30 in · $3.00 out$0.065 in · $0.26 out
Blended (3 in : 1 out)$0.97$0.11
Cheapest host, blended$0.75 (Alibaba)–
Intelligence Index12.7–
Spring Prompt overall––
Output speed, tokens a second––
Context window131,072 tokens1,000,000 tokens
Released25 Jul 2025–
WeightsOpenClosed
Developer based inChinaChina

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.

Agents and tool useMulti-step tasks with tools: support desks, coding agents, function calls 138 of 164 143 of 164
Reasoning and knowledgeHard questions across science, maths and general knowledge 117 of 198 not measured
WritingWhat people prefer in blind comparisons, and judged writing quality 122 of 188 115 of 188
Sticking to the factsSummarising without inventing things, and factual answers 92 of 152 119 of 152

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.

MeasureQwen3-235B-A22B-Thinking-2507Qwen3.5-Flash
Arena (formerly LMArena) reported by Arena (formerly LMArena) · 3 results
Overall · TextArena rating, higher is better 139 · 142 of 387 measured 1,400 1,396
Business, management and finance · TextArena rating, higher is better 133 · 137 of 380 measured 1,404 1,403
Creative writing · TextArena rating, higher is better 133 · 167 of 385 measured 1,371 1,337
SimpleQA Verified (Epoch AI) reported by SimpleQA Verified (Epoch AI) · 1 result
Correct answers% of questions, higher is better 44 · 64 of 76 measured 40.4% 20.3%
Vending-Bench 2 reported by Vending-Bench 2 · 1 result
Money after a yearUS dollars, higher is better 55 · 48 of 58 measured $-11.34 $462.69
Show all 8 results (3 more)
MeasureQwen3-235B-A22B-Thinking-2507Qwen3.5-Flash
Arena (formerly LMArena) reported by Arena (formerly LMArena) · 3 results
Expert prompts · TextArena rating, higher is better 85 · 135 of 338 measured 1,466 1,419
Instruction following · TextArena rating, higher is better 142 · 148 of 387 measured 1,385 1,381
Writing, literature and language · TextArena rating, higher is better 139 · 149 of 386 measured 1,377 1,367

Quick answers

Is Qwen3-235B-A22B-Thinking-2507 better than Qwen3.5-Flash?

They score about the same, so pick Qwen3.5-Flash: it costs 8.6 times less per token.

Which is cheaper, Qwen3-235B-A22B-Thinking-2507 or Qwen3.5-Flash?

Qwen3.5-Flash is cheaper: $0.11 against $0.97 per million tokens, 8.6 times less.

Which is better for agents and tool use, Qwen3-235B-A22B-Thinking-2507 or Qwen3.5-Flash?

Qwen3-235B-A22B-Thinking-2507 ranks 138 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, Qwen3-235B-A22B-Thinking-2507 or Qwen3.5-Flash?

Qwen3.5-Flash ranks 115 of 188 models on sale for what people prefer in blind comparisons, and judged writing quality, against 122 for Qwen3-235B-A22B-Thinking-2507.

Which is better for sticking to the facts, Qwen3-235B-A22B-Thinking-2507 or Qwen3.5-Flash?

Qwen3-235B-A22B-Thinking-2507 ranks 92 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, Qwen3-235B-A22B-Thinking-2507 or Qwen3.5-Flash?

Qwen3.5-Flash: 1,000,000 tokens, against 131,072 for Qwen3-235B-A22B-Thinking-2507.

Run Qwen3-235B-A22B-Thinking-2507 and Qwen3.5-Flash on your own prompt

Benchmarks aren't your data. Try both side by side in the playground, with the cost of every answer.