Qwen3.7 Plus vs Qwen3.8 Flash
Qwen3.8 Flash costs 2.7x less per output token than Qwen3.7 Plus ($0.47 vs $1.28 per million). Updated October 21, 2026; no benchmark has tested both models yet.
- Coding
- 33.2
- Overall
- 54.0
- Output $/M
- $1.28
- Coding
- No data
- Overall
- No data
- Output $/M
- $0.47
Qwen3.7 Plus or Qwen3.8 Flash: which to pick
Only Qwen3.7 Plus has a coding score, 33.2 on the Vibe Coding Index; Qwen3.8 Flash has none, so the two cannot be ranked on coding.
Pick Qwen3.8 Flash for output tokens 2.7x cheaper ($0.47 vs $1.28 per million).
No benchmark has tested both yet. Qwen3.7 Plus has results on AA Coding Index, Vibe Code Bench (Vals AI) and Code migration (Vals AI); Qwen3.8 Flash on LiveBench coding, LiveBench research and LiveBench browser. Compare them on price and context instead.
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
Only Qwen3.7 Plus has a coding score, so no call is made.
One side not measured
Intelligence
AA Intelligence Index
No call
Only Qwen3.7 Plus has a AA Intelligence Index result, 25.2.
Directional only
Agentic work
AA Agentic Index
No call
Only Qwen3.7 Plus has a AA Agentic Index result, 17.5.
Directional only
Web design
Design Arena: websites
No call
Only Qwen3.7 Plus has a Design Arena: websites result, 1269.
Directional only
Long documents
Listed context window
No call
Both take 1M tokens.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Qwen3.8 Flash
Qwen3.7 Plus $0.0010, Qwen3.8 Flash $0.0004 per turn.
List prices
At a glance
- Coding index
- Qwen3.7 Plus 33.2 from 2 benchmarks, Qwen3.8 Flash not benchmarked.
- Widest category
- None yet: no category has been tested on both models.
- Widest single gap
- None yet: no benchmark has tested both models.
- Output price
- Qwen3.7 Plus $1.28 against Qwen3.8 Flash $0.47 per million output tokens, 2.7x apart.
- Context window
- Both take 1M tokens.
Benchmark by benchmark
Every board either model has a result on, a category to a fold; bars are each result on a 0 to 100 scale. Only one model is measured on each, so no row names a leader.
CodingDirectional onlySix of these boards feed the Vibe Coding Index11 boards measured
| Benchmark | Qwen3.7 Plus | Qwen3.8 Flash | Leader |
|---|---|---|---|
| LiveBench coding | Not measured | 87.4% | Only Qwen3.8 Flash measured |
| AA Coding Index | 55.9 | Not measured | Only Qwen3.7 Plus measured |
| Vibe Code Bench (Vals AI) | 46.4% | Not measured | Only Qwen3.7 Plus measured |
| Code migration (Vals AI) | 12.9% | Not measured | Only Qwen3.7 Plus measured |
| Terminal-Bench 2.1 (Vals AI) | 52.8% | Not measured | Only Qwen3.7 Plus measured |
| SkillsBench (Vals AI) | 54.3% | Not measured | Only Qwen3.7 Plus measured |
| SciCode | 46.1% | Not measured | Only Qwen3.7 Plus measured |
| Terminal-Bench Hard (Artificial Analysis run) | 47.0% | Not measured | Only Qwen3.7 Plus measured |
| FrontierCode | 10.2% | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: coding | 1473 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: software and IT | 1473 | Not measured | Only Qwen3.7 Plus measured |
| Neither model has a result on the other 28 boards here | |||
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index2 boards measured
| Benchmark | Qwen3.7 Plus | Qwen3.8 Flash | Leader |
|---|---|---|---|
| AA Intelligence Index | 25.2 | Not measured | Only Qwen3.7 Plus measured |
| Epoch Capabilities Index | 147.0 | Not measured | Only Qwen3.7 Plus measured |
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index10 boards measured
| Benchmark | Qwen3.7 Plus | Qwen3.8 Flash | Leader |
|---|---|---|---|
| AA Agentic Index | 17.5 | Not measured | Only Qwen3.7 Plus measured |
| LiveBench research | Not measured | 74.6% | Only Qwen3.8 Flash measured |
| LiveBench browser | Not measured | 48.0% | Only Qwen3.8 Flash measured |
| LiveBench long agentic | Not measured | 37.1% | Only Qwen3.8 Flash measured |
| Finance Agent (Vals AI) | 38.2% | Not measured | Only Qwen3.7 Plus measured |
| Tax Agent Bench (Vals AI) | 10.5% | Not measured | Only Qwen3.7 Plus measured |
| Legal Research Bench (Vals AI) | 16.4% | Not measured | Only Qwen3.7 Plus measured |
| Excel Modeling Benchmark (Vals AI) | 49.3% | Not measured | Only Qwen3.7 Plus measured |
| τ²-Bench Telecom | 93.0% | Not measured | Only Qwen3.7 Plus measured |
| OSWorld 2.0 | 2.8% | Not measured | Only Qwen3.7 Plus measured |
| Neither model has a result on the other 31 boards here | |||
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index10 boards measured
| Benchmark | Qwen3.7 Plus | Qwen3.8 Flash | Leader |
|---|---|---|---|
| LiveBench reasoning | Not measured | 87.4% | Only Qwen3.8 Flash measured |
| GPQA Diamond (Artificial Analysis run) | 90.0% | Not measured | Only Qwen3.7 Plus measured |
| Humanity's Last Exam (Artificial Analysis run) | 35.6% | Not measured | Only Qwen3.7 Plus measured |
| GPQA Diamond (Epoch AI run) | 87.9% | Not measured | Only Qwen3.7 Plus measured |
| Mystery game puzzles | 17.0% | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: hard prompts | 1460 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: expert | 1466 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: hard prompts in English | 1460 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Vision: diagrams | 1292 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Vision: homework | 1295 | Not measured | Only Qwen3.7 Plus measured |
| Neither model has a result on the other 12 boards here | |||
MathDirectional onlyPublic boards, shown as published, kept out of the index4 boards measured
| Benchmark | Qwen3.7 Plus | Qwen3.8 Flash | Leader |
|---|---|---|---|
| OTIS Mock AIME | 93.3% | Not measured | Only Qwen3.7 Plus measured |
| FrontierMath, tiers 1 to 3 | 34.4% | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: math | 1467 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: mathematical work | 1470 | Not measured | Only Qwen3.7 Plus measured |
| Neither model has a result on the other 9 boards here | |||
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index5 boards measured
| Benchmark | Qwen3.7 Plus | Qwen3.8 Flash | Leader |
|---|---|---|---|
| MortgageTax (Vals AI) | 66.2% | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: science | 1464 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: medicine and healthcare | 1464 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: legal and government | 1451 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: business and finance | 1435 | Not measured | Only Qwen3.7 Plus measured |
| Neither model has a result on the other 13 boards here | |||
Web designDirectional onlyPublic boards, shown as published, kept out of the index9 boards measured
| Benchmark | Qwen3.7 Plus | Qwen3.8 Flash | Leader |
|---|---|---|---|
| Design Arena: websites | 1269 | Not measured | Only Qwen3.7 Plus measured |
| Design Arena: UI components | 1261 | Not measured | Only Qwen3.7 Plus measured |
| Design Arena: game dev | 1262 | Not measured | Only Qwen3.7 Plus measured |
| Design Arena: data viz | 1276 | Not measured | Only Qwen3.7 Plus measured |
| Design Arena: 3D | 1239 | Not measured | Only Qwen3.7 Plus measured |
| Design Arena: all code categories | 1269 | Not measured | Only Qwen3.7 Plus measured |
| Design Arena: SVG | 1208 | Not measured | Only Qwen3.7 Plus measured |
| Design Arena: ASCII art | 1143 | Not measured | Only Qwen3.7 Plus measured |
| LiveBench design | Not measured | 72.8% | Only Qwen3.8 Flash measured |
GeneralDirectional onlyPublic boards, shown as published, kept out of the index31 boards measured
| Benchmark | Qwen3.7 Plus | Qwen3.8 Flash | Leader |
|---|---|---|---|
| LiveBench data analysis | Not measured | 74.2% | Only Qwen3.8 Flash measured |
| SAGE (Vals AI) | 39.3% | Not measured | Only Qwen3.7 Plus measured |
| Vals Multimodal Index | 53.9% | Not measured | Only Qwen3.7 Plus measured |
| IFBench | 78.0% | Not measured | Only Qwen3.7 Plus measured |
| Long context reasoning (AA-LCR) | 73.0% | Not measured | Only Qwen3.7 Plus measured |
| DTBench | 84.0% | Not measured | Only Qwen3.7 Plus measured |
| LMCA | 37.6% | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text | 1454 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: instruction following | 1439 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: creative writing | 1438 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Vision | 1278 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: English | 1458 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: non-English | 1445 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: Chinese | 1509 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: German | 1471 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: Japanese | 1412 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: Korean | 1413 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: French | 1472 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: Spanish | 1457 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: Russian | 1457 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: Polish | 1449 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: multi-turn | 1459 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: longer queries | 1454 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: writing and language | 1437 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Text: entertainment and media | 1422 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Vision: English | 1280 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Vision: Chinese | 1332 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Vision: reading text | 1288 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Vision: humor | 1261 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Vision: creative writing | 1258 | Not measured | Only Qwen3.7 Plus measured |
| LMArena Document | 1444 | Not measured | Only Qwen3.7 Plus measured |
| Neither model has a result on the other 15 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
Qwen3.8 Flash costs less
Repository review
50K input + 3K output tokens
Qwen3.8 Flash costs less
Agent loop
200K input + 10K output tokens
Qwen3.8 Flash 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 | Qwen3.7 Plus | Qwen3.8 Flash |
|---|---|---|
| Maker | Qwen | Qwen |
| Weights | No public weights listed | Open weights |
| Released | June 3, 2026 | August 26, 2026 |
| Context window | 1M | 1M |
| Input $/Mtok | $0.32 | $0.15 |
| Output $/Mtok | $1.28 | $0.47 |
| Coding index | 33.2 | Not benchmarked |
| Independent measurements behind it | 2 | 1 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Qwen3.7 Plus better than Qwen3.8 Flash for coding?
Only Qwen3.7 Plus has a coding score, 33.2 on the Vibe Coding Index; Qwen3.8 Flash has none, so the two cannot be ranked on coding. Pick Qwen3.8 Flash for output tokens 2.7x cheaper ($0.47 vs $1.28 per million).
Which is cheaper, Qwen3.7 Plus or Qwen3.8 Flash?
Qwen3.7 Plus costs $0.32 per million input tokens and $1.28 per million output tokens; Qwen3.8 Flash costs $0.15 and $0.47. Cost per solved task is known for neither of them.
Which has the bigger context window, Qwen3.7 Plus or Qwen3.8 Flash?
Neither: both take 1M tokens.
Has any benchmark tested both Qwen3.7 Plus and Qwen3.8 Flash?
No benchmark has tested both yet. Qwen3.7 Plus has results on AA Coding Index, Vibe Code Bench (Vals AI) and Code migration (Vals AI); Qwen3.8 Flash on LiveBench coding, LiveBench research and LiveBench browser. Compare them on price and context instead. Data as of October 21, 2026.