GPT-5.6 Lunavs.Qwen 3.8 27B
Which one is better?
GPT-5.6 Luna is clearly ahead in the overall index. Qwen 3.8 27B is cheaper for input, GPT-5.6 Luna for output.
36
GPT-5.6 Luna
Rank 32 to 41
11
Qwen 3.8 27B
Rank 44 to 57
127
GPT-5.6 Luna
fairly fast
40
Qwen 3.8 27B
slow
$0.45
GPT-5.6 Luna
cheap
$0.66
Qwen 3.8 27B
fairly cheap
GPT-5.6 Luna
- Subscription
Free to use at OpenAI (ChatGPT Free), more from €8 a month (ChatGPT Go). Through other providers from ≈ €1.06 a month (Command Code Go, with limited credits). 58 plans in Germany.
- Via API
$0.20 input, $1.20 output per 1M tokens, cheaper since Oct 16, 2026 (before $0.22 and $1.32).
- Note
- There is a successor: GPT-6 Luna (rank 31 to 39, $0.10 input, $0.50 output).
Qwen 3.8 27B
- Subscription
No Alibaba subscription includes this model. Through other providers from ≈ €1.06 a month (Command Code Go, with limited credits). 10 plans in Germany.
- Via API
$0.04 input, $2.50 output per 1M tokens according to the provider; the price index has listed it at $0.42 and $3 since Oct 27, 2026.
Overall index with data through Oct 29, 2026 · Prices from Oct 29, 2026 · Speed: measured by Artificial Analysis · Subscriptions as of Oct 24, 2026 · Subscription prices incl. VAT
Where is the difference?
Values from 0 to 100 per task area. We only name a winner when the gap is large enough and there are enough tests.
GPT-5.6 Luna ahead: 7Qwen 3.8 27B ahead: 0level: 2too little data: 1of 10 areas
AreaGPT-5.6 LunaQwen 3.8 27B0 to 100, higher is betterResult
Areas in the overall index
CodingGPT-5.6 Luna aheadGPT-5.6 Luna: 44Qwen 3.8 27B: 13
ReasoningGPT-5.6 Luna aheadGPT-5.6 Luna: 46Qwen 3.8 27B: 6
MathematicsGPT-5.6 Luna aheadGPT-5.6 Luna: 38Qwen 3.8 27B: 8
KnowledgeGPT-5.6 Luna aheadGPT-5.6 Luna: 22Qwen 3.8 27B: 5
AgentslevelGPT-5.6 Luna: 44Qwen 3.8 27B: 21
Generalonly GPT-5.6 Luna has a scoreGPT-5.6 Luna: 27Qwen 3.8 27B: not enough data
MultimodalGPT-5.6 Luna aheadGPT-5.6 Luna: 28Qwen 3.8 27B: 13
Specialist fields
FinancelevelGPT-5.6 Luna: 47Qwen 3.8 27B: 34
LegalGPT-5.6 Luna aheadGPT-5.6 Luna: 39Qwen 3.8 27B: 23
HealthGPT-5.6 Luna aheadGPT-5.6 Luna: 29Qwen 3.8 27B: 3
Show 2 more areas that do not count toward the overall index
AreaGPT-5.6 LunaQwen 3.8 27B0 to 100, higher is betterResult
CybersecurityGPT-5.6 Luna aheadGPT-5.6 Luna: 56Qwen 3.8 27B: 19
Productivityonly GPT-5.6 Luna has a scoreGPT-5.6 Luna: 29Qwen 3.8 27B: not enough data
See for yourself: same task, one attempt
The same prompt for both models. We show the latest attempt without fixes; it does not count toward the overall index.
Pelican on a bicycle
A community classic for free-form SVG drawing.
GPT-5.6 Luna
Reasoning (requested): high
Current attempt
- Run date
- Sep 7, 2026
- API provider
- openrouter
- Requested API model
- openai/gpt-5.6-luna
- API model reported in response
- openai/gpt-5.6-luna
- Reasoning setting
- high
- Pinned endpoint
- OpenAI | openai/gpt-5.6-luna-20260709
- Temperature
- Provider default
- Token limit including reasoning
- 8,192 tokens
- Test protocol
- community-visual-tests-v1
- Technical checks
- Passed, not a quality rating
- Response time
- 49.9 s
Visually reviewed. This individual test does not establish overall model quality.
Qwen 3.8 27B
Not tested yet
Prompt and test conditions
Generate an SVG of a pelican riding a bicycle
Token limit including reasoning: 8,192 tokens
Task origin (Simon Willison)SVG short test
SVG short test
One SVG task with the same fixed settings for every model, without hidden thinking.
Shared test round: 43b8c5c46830
GPT-5.6 Luna
Unavailable in this round
Qwen 3.8 27B
Test details
API reports 0 reasoning tokensAPI model: qwen/qwen3.8-27b865 output tokensAll data side by side
The better value is bold. For the overall index only when the gap is clear.
| Metric | GPT-5.6 Luna | Qwen 3.8 27B |
|---|---|---|
| Intelligence | ||
| Overall index0 to 100, higher is better | 36 | 11 |
| Rank | Rank 32 to 41 of 95 | Rank 44 to 57 of 95 |
| Price per 1M tokens | ||
| Inputwhat you send | $0.20above 272,000 tokens: $0.40 | $0.04 |
| Outputwhat the model writes | $1.20above 272,000 tokens: $1.80 | $2.50 |
| Speed | ||
| Tokens per second | 127 | 40 |
| Technical | ||
| Context windowhow much text the model reads at once | 1.05 M tokens≈ 1,580 A4 pages | 262,144 tokens≈ 390 A4 pages |
| Knowledge cutoff | Feb 16, 2026 | n/a |
| Released | Jul 9, 2026 | Aug 14, 2026 |
| Availability | Active | Active |
| Open weights | no | yes |
Prices without caching or batch discounts · Page count as a rule of thumb from Artificial Analysis
Shared benchmarks
Single results from the same benchmark version, task and metric. A value is bold only with the same test setup and a clear gap.
A: GPT-5.6 LunaB: Qwen 3.8 27B
Code MigrationOverall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 44.6%Qwen 3.8 27B: 14.2%Vals AIAs of 10/18/2026
CritPt v2Overall · higher is betterGPT-5.6 Luna: 2.6%Qwen 3.8 27B: 0.0%Artificial AnalysisAs of 10/29/2026
CyberBench v1.1Overall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 73.6%Qwen 3.8 27B: 67.8%Vals AIAs of 10/20/2026
EMBOverall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 67.1%Qwen 3.8 27B: 59.7%Vals AIAs of 10/20/2026
Finance Agent (v2)Overall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 55%Qwen 3.8 27B: 48.6%Vals AIAs of 10/20/2026
GDPval-AAOverall · higher is betterGPT-5.6 Luna: 1,002.1 eloQwen 3.8 27B: 1,370.88 eloArtificial AnalysisAs of 10/29/2026
GPQA DiamondOverall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 91.7%Qwen 3.8 27B: 88.9%Vals AIAs of 09/01/2026
IOIOverall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 61.8%Qwen 3.8 27B: 39.1%Vals AIAs of 10/24/2026
Legal Research BenchOverall · All-pass · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 36.5%Qwen 3.8 27B: 36.1%Vals AIAs of 10/26/2026
LegalBenchOverall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 84%Qwen 3.8 27B: 82.4%Vals AIAs of 10/13/2026
Show 54 more benchmarks
MedCodeOverall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 42.4%Qwen 3.8 27B: 28.7%Vals AIAs of 10/13/2026
MedScribeOverall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 84.4%Qwen 3.8 27B: 83.8%Vals AIAs of 10/13/2026
MMLU ProOverall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 86%Qwen 3.8 27B: 84.3%Vals AIAs of 09/01/2026
MMMU ProOverall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 85%Qwen 3.8 27B: 83.9%Vals AIAs of 09/01/2026
MMMU-ProOverall · higher is betterGPT-5.6 Luna: 74.0%Qwen 3.8 27B: 73.8%Artificial AnalysisAs of 10/29/2026
MortgageTaxOverall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 67.3%Qwen 3.8 27B: 64.9%Vals AIAs of 09/01/2026
ProgramBenchOverall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 0%Qwen 3.8 27B: 0%Vals AIAs of 10/20/2026
ProofBench v1.1Overall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 60%Qwen 3.8 27B: 16%Vals AIAs of 10/24/2026
SkillsBenchOverall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 60.4%Qwen 3.8 27B: 38.1%Vals AIAs of 09/27/2026
SWE-bench VerifiedOverall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 93%Qwen 3.8 27B: 86%Vals AIAs of 09/01/2026
Tax Agent BenchOverall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 24.8%Qwen 3.8 27B: 30.9%Vals AIAs of 10/26/2026
TaxEval v2Overall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 76.2%Qwen 3.8 27B: 70.9%Vals AIAs of 09/01/2026
Terminal-Bench 2.1Overall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 79%Qwen 3.8 27B: 58.4%Vals AIAs of 10/01/2026
Terminal-Bench-ScienceOverall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 0%Qwen 3.8 27B: 0%Vals AIAs of 10/25/2026
Vibe Code Bench v1.1Overall · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 77.1%Qwen 3.8 27B: 64.9%Vals AIAs of 10/26/2026
Code MigrationCLI · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 36.1%Qwen 3.8 27B: 2.2%Vals AIAs of 10/18/2026
CritPt v2Overall · higher is betterGPT-5.6 Luna: 4.9%Qwen 3.8 27B: 0.0%Artificial AnalysisAs of 10/29/2026
CyberBench v1.1Patch · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 83.9%Qwen 3.8 27B: 83.9%Vals AIAs of 10/20/2026
EMBComps · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 54.6%Qwen 3.8 27B: 53.3%Vals AIAs of 10/20/2026
Finance Agent (v2)Adjustments · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 52%Qwen 3.8 27B: 47.3%Vals AIAs of 10/20/2026
GDPval-AAOverall · higher is betterGPT-5.6 Luna: 1,138.33 eloQwen 3.8 27B: 1,389.29 eloArtificial AnalysisAs of 10/29/2026
GPQA DiamondFew-Shot CoT · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 92.4%Qwen 3.8 27B: 88.9%Vals AIAs of 09/01/2026
IOIIOI 2024 · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 85%Qwen 3.8 27B: 31.8%Vals AIAs of 10/24/2026
Legal Research BenchAdministrative / Regulatory · All-pass · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 48.5%Qwen 3.8 27B: 45.5%Vals AIAs of 10/26/2026
LegalBenchConclusion Tasks · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 88.9%Qwen 3.8 27B: 88.4%Vals AIAs of 10/13/2026
MMLU ProBiology · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 93.3%Qwen 3.8 27B: 91.5%Vals AIAs of 09/01/2026
MMMU-ProOverall · higher is betterGPT-5.6 Luna: 75.8%Qwen 3.8 27B: 74.2%Artificial AnalysisAs of 10/29/2026
MortgageTaxNumerical Extraction · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 75.6%Qwen 3.8 27B: 69.4%Vals AIAs of 09/01/2026
ProgramBenchAlmost Resolved · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 9%Qwen 3.8 27B: 1%Vals AIAs of 10/20/2026
SkillsBenchNo Skills · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 45.2%Qwen 3.8 27B: 19.1%Vals AIAs of 09/27/2026
SWE-bench Verified<15 min fix · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 96.4%Qwen 3.8 27B: 90.2%Vals AIAs of 09/01/2026
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 10%Qwen 3.8 27B: 6.7%Vals AIAs of 10/26/2026
TaxEval v2Correctness · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 66.6%Qwen 3.8 27B: 60.1%Vals AIAs of 09/01/2026
Terminal-Bench 2.1Easy · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 83.3%Qwen 3.8 27B: 50%Vals AIAs of 10/01/2026
Terminal-Bench-ScienceEarth Sciences · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 0%Qwen 3.8 27B: 0%Vals AIAs of 10/25/2026
Code MigrationCOBOL · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 70%Qwen 3.8 27B: 50%Vals AIAs of 10/18/2026
CritPt v2Overall · higher is betterGPT-5.6 Luna: 20.6%Qwen 3.8 27B: 5.4%Artificial AnalysisAs of 10/29/2026
CyberBench v1.1PoC · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 63.3%Qwen 3.8 27B: 51.7%Vals AIAs of 10/20/2026
EMBDataroom · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 83%Qwen 3.8 27B: 79.7%Vals AIAs of 10/20/2026
Finance Agent (v2)All-Pass · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 43.3%Qwen 3.8 27B: 36.8%Vals AIAs of 10/20/2026
GDPval-AAOverall · higher is betterGPT-5.6 Luna: 1,408.75 eloQwen 3.8 27B: 1,427.26 eloArtificial AnalysisAs of 10/29/2026
GPQA DiamondZero-Shot CoT · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 90.9%Qwen 3.8 27B: 88.9%Vals AIAs of 09/01/2026
IOIIOI 2025 · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 49.8%Qwen 3.8 27B: 48.5%Vals AIAs of 10/24/2026
Legal Research BenchAdministrative / Regulatory · Weighted partial credit · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 87.5%Qwen 3.8 27B: 88.5%Vals AIAs of 10/26/2026
LegalBenchInterpretation Tasks · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 82.1%Qwen 3.8 27B: 82%Vals AIAs of 10/13/2026
MMLU ProBusiness · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 91%Qwen 3.8 27B: 90.2%Vals AIAs of 09/01/2026
MMMU-ProOverall · higher is betterGPT-5.6 Luna: 78.6%Qwen 3.8 27B: 76.3%Artificial AnalysisAs of 10/29/2026
MortgageTaxSemantic Extraction · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 59%Qwen 3.8 27B: 60.5%Vals AIAs of 09/01/2026
ProgramBenchFully Resolved · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 0%Qwen 3.8 27B: 0%Vals AIAs of 10/20/2026
SkillsBenchWith Skills · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 60.4%Qwen 3.8 27B: 38.1%Vals AIAs of 09/27/2026
SWE-bench Verified>4 hours · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 66.7%Qwen 3.8 27B: 66.7%Vals AIAs of 09/01/2026
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 61.2%Qwen 3.8 27B: 48.3%Vals AIAs of 10/26/2026
TaxEval v2Stepwise Reasoning · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 85.8%Qwen 3.8 27B: 81.6%Vals AIAs of 09/01/2026
Terminal-Bench 2.1Hard · higher is betterTest setup not documented as identicalGPT-5.6 Luna: 70%Qwen 3.8 27B: 43.3%Vals AIAs of 10/01/2026
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