Qwen3 235B A22B Thinking 2507 vs Qwen3.5 Plus 2026-02-15
Qwen3.5 Plus 2026-02-15 costs 2.2x less per output token than Qwen3 235B A22B Thinking 2507 ($1.56 vs $3.50 per million). Updated October 22, 2026; 6 benchmarks have a result for both.
Qwen3 235B A22B Thinking 2507 or Qwen3.5 Plus 2026-02-15: which to pick
Neither model has a coding score yet, so the two cannot be ranked on coding.
Pick Qwen3 235B A22B Thinking 2507 for work measured by Design Arena: websites or Design Arena: UI components, where it leads.
- Shared results
- 6
- Qwen3 235B A22B Thinking 2507 only
- 40
- Qwen3.5 Plus 2026-02-15 only
- 2
- Like-for-like categories
- 1 of 9
Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.
Which one for your work
Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.
Coding
Vibe Coding Index, six public coding benchmarks
No call
Neither has a coding score yet.
One side not measured
Intelligence
AA Intelligence Index
No call
Only Qwen3 235B A22B Thinking 2507 has a AA Intelligence Index result, 12.7.
Directional only
Agentic work
AA Agentic Index
No call
Only Qwen3 235B A22B Thinking 2507 has a AA Agentic Index result, 1.3.
Directional only
Web design
Design Arena: websites
Qwen3.5 Plus 2026-02-15
Qwen3.5 Plus 2026-02-15 leads, 1187 against 1052.
Same board, both measured
Long documents
Listed context window
Qwen3.5 Plus 2026-02-15
Qwen3.5 Plus 2026-02-15 takes 1M tokens against 128K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Qwen3.5 Plus 2026-02-15
Qwen3 235B A22B Thinking 2507 $0.0022, Qwen3.5 Plus 2026-02-15 $0.0010 per turn.
List prices
At a glance
- Coding index
- Qwen3 235B A22B Thinking 2507 not benchmarked, Qwen3.5 Plus 2026-02-15 not benchmarked.
- Widest category
- Web design, 19.9 points apart on average over 6 shared benchmarks.
- Widest single gap
- Design Arena: UI components: Qwen3 235B A22B Thinking 2507 942 against Qwen3.5 Plus 2026-02-15 1175, 29.1 points apart on a 0 to 100 scale.
- Output price
- Qwen3 235B A22B Thinking 2507 $3.50 against Qwen3.5 Plus 2026-02-15 $1.56 per million output tokens, 2.2x apart.
- Context window
- Qwen3 235B A22B Thinking 2507 takes 128K tokens, Qwen3.5 Plus 2026-02-15 1M.
Benchmark by benchmark
First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.
| Category | Qwen3 235B A22B Thinking 2507 | Bars | Qwen3.5 Plus 2026-02-15 | Ties |
|---|---|---|---|---|
| Web design | 0 | 6 | ||
| All shared boards | 0 | 6 |
CodingDirectional onlySix of these boards feed the Vibe Coding Index4 boards, none shared
| Benchmark | Qwen3 235B A22B Thinking 2507 | Qwen3.5 Plus 2026-02-15 | Leader |
|---|---|---|---|
| AA Coding Index | 22.1 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| WeirdML | 41.0% | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: coding | 1424 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: software and IT | 1431 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| Neither model has a result on the other 39 boards here | |||
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
| Benchmark | Qwen3 235B A22B Thinking 2507 | Qwen3.5 Plus 2026-02-15 | Leader |
|---|---|---|---|
| AA Intelligence Index | 12.7 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| Neither model has a result on the other 1 board here | |||
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index2 boards, none shared
| Benchmark | Qwen3 235B A22B Thinking 2507 | Qwen3.5 Plus 2026-02-15 | Leader |
|---|---|---|---|
| AA Agentic Index | 1.3 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| Vending-Bench 2 | -$11 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| Neither model has a result on the other 40 boards here | |||
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index5 boards, none shared
| Benchmark | Qwen3 235B A22B Thinking 2507 | Qwen3.5 Plus 2026-02-15 | Leader |
|---|---|---|---|
| GPQA Diamond (Epoch AI run) | 80.1% | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| Mystery game puzzles | 9.0% | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: hard prompts | 1416 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: expert | 1463 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: hard prompts in English | 1432 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| Neither model has a result on the other 18 boards here | |||
MathDirectional onlyPublic boards, shown as published, kept out of the index3 boards, none shared
| Benchmark | Qwen3 235B A22B Thinking 2507 | Qwen3.5 Plus 2026-02-15 | Leader |
|---|---|---|---|
| OTIS Mock AIME | 86.7% | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: math | 1412 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: mathematical work | 1435 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| Neither model has a result on the other 11 boards here | |||
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index5 boards, none shared
| Benchmark | Qwen3 235B A22B Thinking 2507 | Qwen3.5 Plus 2026-02-15 | Leader |
|---|---|---|---|
| SimpleQA Verified | 40.4% | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: science | 1433 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: medicine and healthcare | 1456 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: legal and government | 1415 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: business and finance | 1413 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| Neither model has a result on the other 15 boards here | |||
Web designLike-for-likePublic boards, shown as published, kept out of the index06
| Benchmark | Qwen3 235B A22B Thinking 2507 | Qwen3.5 Plus 2026-02-15 | Leader |
|---|---|---|---|
| Design Arena: websites | 1052 | 1187 | Qwen3.5 Plus 2026-02-15 |
| Design Arena: UI components | 942 | 1175 | Qwen3.5 Plus 2026-02-15 |
| Design Arena: game dev | 956 | 1105 | Qwen3.5 Plus 2026-02-15 |
| Design Arena: data viz | 950 | 1135 | Qwen3.5 Plus 2026-02-15 |
| Design Arena: 3D | 997 | 1118 | Qwen3.5 Plus 2026-02-15 |
| Design Arena: all code categories | 1032 | 1166 | Qwen3.5 Plus 2026-02-15 |
| Design Arena: SVG | Not measured | 1107 | Only Qwen3.5 Plus 2026-02-15 measured |
| Design Arena: ASCII art | Not measured | 1094 | Only Qwen3.5 Plus 2026-02-15 measured |
| Neither model has a result on the other 1 board here | |||
GeneralDirectional onlyPublic boards, shown as published, kept out of the index20 boards, none shared
| Benchmark | Qwen3 235B A22B Thinking 2507 | Qwen3.5 Plus 2026-02-15 | Leader |
|---|---|---|---|
| DTBench | 80.3% | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMCA | 29.3% | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| Fiction.LiveBench | 75.0% | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| Creative writing (Lech Mazur) | 82.4% | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text | 1415 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: instruction following | 1386 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: creative writing | 1384 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: English | 1429 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: non-English | 1397 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: Chinese | 1481 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: German | 1408 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: Japanese | 1386 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: Korean | 1375 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: Spanish | 1389 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: Russian | 1401 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: Polish | 1390 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: multi-turn | 1406 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: longer queries | 1400 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: writing and language | 1388 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| LMArena Text: entertainment and media | 1370 | Not measured | Only Qwen3 235B A22B Thinking 2507 measured |
| Neither model has a result on the other 28 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Qwen3 235B A22B Thinking 2507 | Qwen3.5 Plus 2026-02-15 | Leader |
|---|---|---|---|
| Neither model has a result on 5 boards here | |||
What each workload costs
Three fixed token mixes at each model's listed price, so per-token rates become a bill.
Chat turn
1K input + 500 output tokens
Qwen3.5 Plus 2026-02-15 costs less
Repository review
50K input + 3K output tokens
Qwen3.5 Plus 2026-02-15 costs less
Agent loop
200K input + 10K output tokens
Qwen3.5 Plus 2026-02-15 costs less
Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.
Specification differences
The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.
| Specification | Qwen3 235B A22B Thinking 2507 | Qwen3.5 Plus 2026-02-15 |
|---|---|---|
| Maker | Qwen | Qwen |
| Weights | Open weights | No public weights listed |
| Released | July 25, 2025 | February 16, 2026 |
| Context window | 128K | 1M |
| Input $/Mtok | $0.45 | $0.26 |
| Output $/Mtok | $3.50 | $1.56 |
| Coding index | Not benchmarked | Not benchmarked |
| Independent measurements behind it | 0 | 0 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Qwen3 235B A22B Thinking 2507 better than Qwen3.5 Plus 2026-02-15 for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Qwen3 235B A22B Thinking 2507 for work measured by Design Arena: websites or Design Arena: UI components, where it leads.
Which is cheaper, Qwen3 235B A22B Thinking 2507 or Qwen3.5 Plus 2026-02-15?
Qwen3 235B A22B Thinking 2507 costs $0.45 per million input tokens and $3.50 per million output tokens; Qwen3.5 Plus 2026-02-15 costs $0.26 and $1.56. Cost per solved task is known for neither of them.
Which has the bigger context window, Qwen3 235B A22B Thinking 2507 or Qwen3.5 Plus 2026-02-15?
Qwen3.5 Plus 2026-02-15, with 1M tokens against 128K.
How many benchmarks is the Qwen3 235B A22B Thinking 2507 vs Qwen3.5 Plus 2026-02-15 comparison based on?
6 benchmarks have a result for both models as of October 22, 2026. Qwen3 235B A22B Thinking 2507's coding index rests on 0 independent benchmarks and Qwen3.5 Plus 2026-02-15's on 0. Where only one model has a result, the page says so instead of naming a winner.