GPT-6 Luna vs Qwen3.6 Plus
GPT-6 Luna leads Qwen3.6 Plus on coding, 57.3 to 44.1 on the Vibe Coding Index, and GPT-6 Luna costs 3.9x less per output token ($0.50 vs $1.95 per million). Updated October 22, 2026; 64 benchmarks have a result for both.
GPT-6 Luna or Qwen3.6 Plus: which to pick
Pick GPT-6 Luna for coding: it scores 57.3 on the Vibe Coding Index against 44.1 for Qwen3.6 Plus.
Pick Qwen3.6 Plus for work measured by LMArena Text: coding or LMArena Text: software and IT, where it leads.
- Shared results
- 64
- GPT-6 Luna only
- 39
- Qwen3.6 Plus only
- 19
- Like-for-like categories
- 8 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
GPT-6 Luna
GPT-6 Luna scores 57.3 against 44.1.
5 and 3 benchmarks behind the scores
Intelligence
AA Intelligence Index
GPT-6 Luna
GPT-6 Luna leads, 38.1 against 27.0.
Same board, both measured
Reasoning
GPQA Diamond
No call
Only Qwen3.6 Plus has a GPQA Diamond result, 87.4%.
Directional only
Math
AIME
No call
Only Qwen3.6 Plus has a AIME result, 94.6%.
Directional only
Knowledge
MMLU Pro
No call
Only Qwen3.6 Plus has a MMLU Pro result, 87.7%.
Directional only
Web design
Design Arena: websites
GPT-6 Luna
GPT-6 Luna leads, 1271 against 1243.
Same board, both measured
General
Vals Index
No call
Only GPT-6 Luna has a Vals Index result, 52.3%.
Directional only
Long documents
Listed context window
GPT-6 Luna
GPT-6 Luna takes 1.05M tokens against 1M.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
GPT-6 Luna
GPT-6 Luna $0.0003, Qwen3.6 Plus $0.0013 per turn.
List prices
Cost per solved task
One SWE-bench Verified task, solved
No call
Only Qwen3.6 Plus has the number, $1.19.
Directional only
At a glance
- Coding index
- GPT-6 Luna 57.3 from 5 benchmarks, Qwen3.6 Plus 44.1 from 3 benchmarks.
- Widest category
- Coding, 20.4 points apart on average over 11 shared benchmarks.
- Widest single gap
- Vibe Code Bench (Vals AI): GPT-6 Luna 81.7% against Qwen3.6 Plus 25.6%, 56.1 points apart on a 0 to 100 scale.
- Output price
- GPT-6 Luna $0.50 against Qwen3.6 Plus $1.95 per million output tokens, 3.9x apart.
- Context window
- GPT-6 Luna takes 1.05M tokens, Qwen3.6 Plus 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 | GPT-6 Luna | Bars | Qwen3.6 Plus | Ties |
|---|---|---|---|---|
| Coding | 9 | 2 | ||
| Intelligence | 2 | 0 | ||
| Agentic work | 4 | 0 | ||
| Reasoning | 3 | 4 | ||
| Math | 2 | 2 | ||
| Knowledge | 1 | 5 | ||
| Web design | 7 | 1 | ||
| General | 5 | 17 | ||
| All shared boards | 33 | 31 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index92
| Benchmark | GPT-6 Luna | Qwen3.6 Plus | Leader |
|---|---|---|---|
| LiveBench coding | 84.5% | Not measured | Only GPT-6 Luna measured |
| LMArena WebDev | 1578 | 1461 | GPT-6 Luna |
| AA Coding Index | Not measured | 54.5 | Only Qwen3.6 Plus measured |
| LiveCodeBench (Vals AI) | Not measured | 86.0% | Only Qwen3.6 Plus measured |
| SWE-bench Verified (Vals AI) | Not measured | 73.4% | Only Qwen3.6 Plus measured |
| Terminal-Bench 4 (Vals AI) | 13.6% | Not measured | Only GPT-6 Luna measured |
| Vibe Code Bench (Vals AI) | 81.7% | 25.6% | GPT-6 Luna |
| Code migration (Vals AI) | 42.5% | 11.1% | GPT-6 Luna |
| ProgramBench (Vals AI) | 0.5% | 0.0% | GPT-6 Luna |
| IOI (Vals AI) | 55.6% | Not measured | Only GPT-6 Luna measured |
| Terminal-Bench 2.1 (Vals AI) | 73.0% | 53.2% | GPT-6 Luna |
| SWE-bench Multimodal (Vals AI) | 37.5% | Not measured | Only GPT-6 Luna measured |
| CyberBench (Vals AI) | 76.3% | Not measured | Only GPT-6 Luna measured |
| SciCode | 54.6% | Not measured | Only GPT-6 Luna measured |
| Terminal-Bench Hard (Artificial Analysis run) | Not measured | 43.9% | Only Qwen3.6 Plus measured |
| FrontierCode | 42.4% | Not measured | Only GPT-6 Luna measured |
| ALE-Bench | 1576.9 | 670.1 | GPT-6 Luna |
| LMArena Text: coding | 1437 | 1467 | Qwen3.6 Plus |
| LMArena Text: software and IT | 1423 | 1462 | Qwen3.6 Plus |
| LMArena WebDev: React | 1573 | 1454 | GPT-6 Luna |
| LMArena WebDev: HTML | 1595 | 1463 | GPT-6 Luna |
| LMArena WebDev: from an image | 1571 | 1472 | GPT-6 Luna |
| Neither model has a result on the other 17 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
| Benchmark | GPT-6 Luna | Qwen3.6 Plus | Leader |
|---|---|---|---|
| AA Intelligence Index | 38.1 | 27.0 | GPT-6 Luna |
| Epoch Capabilities Index | 156.8 | 147.3 | GPT-6 Luna |
Agentic workLike-for-likePublic boards, shown as published, kept out of the index40
| Benchmark | GPT-6 Luna | Qwen3.6 Plus | Leader |
|---|---|---|---|
| Design Arena: agents building web apps | 1191 | Not measured | Only GPT-6 Luna measured |
| Design Arena: agents building full-stack apps | 1158 | Not measured | Only GPT-6 Luna measured |
| Design Arena: agents building mobile apps | 1134 | Not measured | Only GPT-6 Luna measured |
| LiveBench research | 43.5% | Not measured | Only GPT-6 Luna measured |
| LiveBench browser | 72.0% | Not measured | Only GPT-6 Luna measured |
| LiveBench long agentic | 48.1% | Not measured | Only GPT-6 Luna measured |
| SREBench (Vals AI) | 2.7% | Not measured | Only GPT-6 Luna measured |
| Finance Agent (Vals AI) | 49.9% | 40.9% | GPT-6 Luna |
| Tax Agent Bench (Vals AI) | 19.9% | 7.7% | GPT-6 Luna |
| Legal Research Bench (Vals AI) | 30.3% | 14.9% | GPT-6 Luna |
| Harvey's Legal Agent Benchmark (Vals AI) | 4.2% | Not measured | Only GPT-6 Luna measured |
| Excel Modeling Benchmark (Vals AI) | 68.5% | 32.9% | GPT-6 Luna |
| BioMysteryBench (Vals AI) | 61.5% | Not measured | Only GPT-6 Luna measured |
| Terminal-Bench-Science (Vals AI) | 4.3% | Not measured | Only GPT-6 Luna measured |
| Vals Science Index | 28.4% | Not measured | Only GPT-6 Luna measured |
| τ²-Bench Telecom | Not measured | 97.7% | Only Qwen3.6 Plus measured |
| APEX-Agents | 44.3% | Not measured | Only GPT-6 Luna measured |
| SpireClimb | 0.0% | Not measured | Only GPT-6 Luna measured |
| Vending-Bench 2 | Not measured | $5,115 | Only Qwen3.6 Plus measured |
| Neither model has a result on the other 22 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index34
| Benchmark | GPT-6 Luna | Qwen3.6 Plus | Leader |
|---|---|---|---|
| GPQA Diamond | Not measured | 87.4% | Only Qwen3.6 Plus measured |
| LiveBench reasoning | 81.8% | Not measured | Only GPT-6 Luna measured |
| MysteryMechanism (Vals AI) | 19.4% | Not measured | Only GPT-6 Luna measured |
| MMMU Pro (Vals AI) | Not measured | 84.2% | Only Qwen3.6 Plus measured |
| GPQA Diamond (Artificial Analysis run) | Not measured | 88.2% | Only Qwen3.6 Plus measured |
| Humanity's Last Exam (Artificial Analysis run) | 38.5% | 27.8% | GPT-6 Luna |
| GPQA Diamond (Epoch AI run) | 90.5% | 88.4% | GPT-6 Luna |
| ARC-AGI | 86.7% | Not measured | Only GPT-6 Luna measured |
| ARC-AGI-2 | 59.3% | Not measured | Only GPT-6 Luna measured |
| Chess puzzles | 36.0% | 14.0% | GPT-6 Luna |
| Mystery game puzzles | 7.0% | 12.0% | Qwen3.6 Plus |
| LMArena Text: hard prompts | 1410 | 1448 | Qwen3.6 Plus |
| LMArena Text: expert | 1442 | 1454 | Qwen3.6 Plus |
| LMArena Text: hard prompts in English | 1410 | 1455 | Qwen3.6 Plus |
| LMArena Vision: diagrams | 1245 | Not measured | Only GPT-6 Luna measured |
| LMArena Vision: homework | 1261 | Not measured | Only GPT-6 Luna measured |
| Neither model has a result on the other 6 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index22
| Benchmark | GPT-6 Luna | Qwen3.6 Plus | Leader |
|---|---|---|---|
| AIME | Not measured | 94.6% | Only Qwen3.6 Plus measured |
| OTIS Mock AIME | 98.9% | 93.3% | GPT-6 Luna |
| FrontierMath, tiers 1 to 3 | 78.9% | 38.2% | GPT-6 Luna |
| FrontierMath, tier 4 | 56.1% | Not measured | Only GPT-6 Luna measured |
| ProofBench | 64.0% | Not measured | Only GPT-6 Luna measured |
| LMArena Text: math | 1409 | 1449 | Qwen3.6 Plus |
| LMArena Text: mathematical work | 1427 | 1448 | Qwen3.6 Plus |
| Neither model has a result on the other 6 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index15
| Benchmark | GPT-6 Luna | Qwen3.6 Plus | Leader |
|---|---|---|---|
| MMLU Pro | Not measured | 87.7% | Only Qwen3.6 Plus measured |
| LegalBench (Vals AI) | Not measured | 84.2% | Only Qwen3.6 Plus measured |
| CaseLaw (Vals AI) | Not measured | 51.5% | Only Qwen3.6 Plus measured |
| CorpFin (Vals AI) | Not measured | 61.9% | Only Qwen3.6 Plus measured |
| TaxEval (Vals AI) | Not measured | 74.7% | Only Qwen3.6 Plus measured |
| MortgageTax (Vals AI) | Not measured | 68.0% | Only Qwen3.6 Plus measured |
| MedCode (Vals AI) | 44.7% | 36.9% | GPT-6 Luna |
| SimpleQA Verified | 41.4% | 44.1% | Qwen3.6 Plus |
| LMArena Text: science | 1386 | 1439 | Qwen3.6 Plus |
| LMArena Text: medicine and healthcare | 1352 | 1442 | Qwen3.6 Plus |
| LMArena Text: legal and government | 1400 | 1437 | Qwen3.6 Plus |
| LMArena Text: business and finance | 1388 | 1430 | Qwen3.6 Plus |
| FACTS Benchmark Suite | 63.3% | Not measured | Only GPT-6 Luna measured |
| Neither model has a result on the other 5 boards here | |||
Web designLike-for-likePublic boards, shown as published, kept out of the index71
| Benchmark | GPT-6 Luna | Qwen3.6 Plus | Leader |
|---|---|---|---|
| Design Arena: websites | 1271 | 1243 | GPT-6 Luna |
| Design Arena: UI components | 1295 | 1230 | GPT-6 Luna |
| Design Arena: game dev | 1257 | 1211 | GPT-6 Luna |
| Design Arena: data viz | 1216 | 1228 | Qwen3.6 Plus |
| Design Arena: 3D | 1218 | 1202 | GPT-6 Luna |
| Design Arena: all code categories | 1270 | 1236 | GPT-6 Luna |
| Design Arena: SVG | 1252 | 1161 | GPT-6 Luna |
| Design Arena: ASCII art | 1153 | 1113 | GPT-6 Luna |
| LiveBench design | 82.5% | Not measured | Only GPT-6 Luna measured |
GeneralLike-for-likePublic boards, shown as published, kept out of the index517
| Benchmark | GPT-6 Luna | Qwen3.6 Plus | Leader |
|---|---|---|---|
| Vals Index | 52.3% | Not measured | Only GPT-6 Luna measured |
| LiveBench data analysis | 73.4% | Not measured | Only GPT-6 Luna measured |
| Public Benefits Bench (Vals AI) | 57.6% | Not measured | Only GPT-6 Luna measured |
| SAGE (Vals AI) | 48.1% | 44.9% | GPT-6 Luna |
| MedScribe (Vals AI) | 83.7% | 77.0% | GPT-6 Luna |
| Vals Multimodal Index | Not measured | 51.5% | Only Qwen3.6 Plus measured |
| IFBench | Not measured | 75.2% | Only Qwen3.6 Plus measured |
| Long context reasoning (AA-LCR) | 83.3% | 78.3% | GPT-6 Luna |
| DTBench | 90.1% | 81.9% | GPT-6 Luna |
| LMCA | 44.5% | 33.1% | GPT-6 Luna |
| CL-bench | Not measured | 20.3% | Only Qwen3.6 Plus measured |
| Furniture assembly | 44.2% | Not measured | Only GPT-6 Luna measured |
| LMArena Text | 1389 | 1436 | Qwen3.6 Plus |
| LMArena Text: instruction following | 1408 | 1424 | Qwen3.6 Plus |
| LMArena Text: creative writing | 1363 | 1404 | Qwen3.6 Plus |
| LMArena Vision | 1216 | Not measured | Only GPT-6 Luna measured |
| LMArena Text: English | 1393 | 1445 | Qwen3.6 Plus |
| LMArena Text: non-English | 1381 | 1424 | Qwen3.6 Plus |
| LMArena Text: Chinese | 1427 | 1477 | Qwen3.6 Plus |
| LMArena Text: German | 1376 | 1451 | Qwen3.6 Plus |
| LMArena Text: Japanese | 1369 | 1390 | Qwen3.6 Plus |
| LMArena Text: Korean | 1359 | 1379 | Qwen3.6 Plus |
| LMArena Text: French | 1408 | 1455 | Qwen3.6 Plus |
| LMArena Text: Spanish | 1391 | 1432 | Qwen3.6 Plus |
| LMArena Text: Russian | 1392 | 1434 | Qwen3.6 Plus |
| LMArena Text: Polish | 1383 | 1433 | Qwen3.6 Plus |
| LMArena Text: multi-turn | 1392 | 1438 | Qwen3.6 Plus |
| LMArena Text: longer queries | 1408 | 1439 | Qwen3.6 Plus |
| LMArena Text: writing and language | 1384 | 1418 | Qwen3.6 Plus |
| LMArena Text: entertainment and media | 1364 | 1402 | Qwen3.6 Plus |
| LMArena Vision: English | 1204 | Not measured | Only GPT-6 Luna measured |
| LMArena Vision: Chinese | 1266 | Not measured | Only GPT-6 Luna measured |
| LMArena Vision: reading text | 1225 | Not measured | Only GPT-6 Luna measured |
| LMArena Vision: creative writing | 1205 | Not measured | Only GPT-6 Luna measured |
| Neither model has a result on the other 12 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | GPT-6 Luna | Qwen3.6 Plus | 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
GPT-6 Luna costs less
Repository review
50K input + 3K output tokens
GPT-6 Luna costs less
Agent loop
200K input + 10K output tokens
GPT-6 Luna 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 | OpenAI GPT-6 Luna | Qwen3.6 Plus |
|---|---|---|
| Maker | OpenAI | Qwen |
| Weights | No public weights listed | No public weights listed |
| Released | September 22, 2026 | April 2, 2026 |
| Context window | 1.05M | 1M |
| Input $/Mtok | $0.10 | $0.325 |
| Output $/Mtok | $0.50 | $1.95 |
| Coding index | 57.3 | 44.1 |
| Independent measurements behind it | 5 | 3 |
| Cost per solved task | Not computable | $1.19 |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is GPT-6 Luna better than Qwen3.6 Plus for coding?
Pick GPT-6 Luna for coding: it scores 57.3 on the Vibe Coding Index against 44.1 for Qwen3.6 Plus. Pick Qwen3.6 Plus for work measured by LMArena Text: coding or LMArena Text: software and IT, where it leads.
Which is cheaper, GPT-6 Luna or Qwen3.6 Plus?
GPT-6 Luna costs $0.10 per million input tokens and $0.50 per million output tokens; Qwen3.6 Plus costs $0.325 and $1.95. Cost per solved task is known for Qwen3.6 Plus only.
Which has the bigger context window, GPT-6 Luna or Qwen3.6 Plus?
GPT-6 Luna, with 1.05M tokens against 1M.
How many benchmarks is the GPT-6 Luna vs Qwen3.6 Plus comparison based on?
64 benchmarks have a result for both models as of October 22, 2026. GPT-6 Luna's coding index rests on 5 independent benchmarks and Qwen3.6 Plus's on 3. Where only one model has a result, the page says so instead of naming a winner.