GLM-5.3-Flashvs.Qwen 3.8 27B
Which one is better?
GLM-5.3-Flash is clearly ahead in the overall index. Qwen 3.8 27B is cheaper for input, GLM-5.3-Flash for output.
34
GLM-5.3-Flash
Rank 32 to 41
11
Qwen 3.8 27B
Rank 44 to 57
78
GLM-5.3-Flash
fairly slow
40
Qwen 3.8 27B
slow
$0.24
GLM-5.3-Flash
cheap
$0.66
Qwen 3.8 27B
fairly cheap
GLM-5.3-Flash
- Subscription
At Z.ai from ≈ €19.08 a month (GLM Coding Plan Lite, with limited credits). Through other providers from ≈ €1.06 a month (Command Code Go, with limited credits). 26 plans in Germany.
- Via API
$0.15 input, $0.50 output per 1M tokens, unchanged since Aug 29, 2026.
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.
GLM-5.3-Flash ahead: 7Qwen 3.8 27B ahead: 0level: 2too little data: 1of 10 areas
AreaGLM-5.3-FlashQwen 3.8 27B0 to 100, higher is betterResult
Areas in the overall index
CodingGLM-5.3-Flash aheadGLM-5.3-Flash: 39Qwen 3.8 27B: 13
ReasoninglevelGLM-5.3-Flash: 18Qwen 3.8 27B: 6
MathematicsGLM-5.3-Flash aheadGLM-5.3-Flash: 28Qwen 3.8 27B: 8
KnowledgeGLM-5.3-Flash aheadGLM-5.3-Flash: 21Qwen 3.8 27B: 5
AgentslevelGLM-5.3-Flash: 25Qwen 3.8 27B: 21
Generalonly GLM-5.3-Flash has a scoreGLM-5.3-Flash: 27Qwen 3.8 27B: not enough data
MultimodalGLM-5.3-Flash aheadGLM-5.3-Flash: 41Qwen 3.8 27B: 13
Specialist fields
FinanceGLM-5.3-Flash aheadGLM-5.3-Flash: 50Qwen 3.8 27B: 34
LegalGLM-5.3-Flash aheadGLM-5.3-Flash: 51Qwen 3.8 27B: 23
HealthGLM-5.3-Flash aheadGLM-5.3-Flash: 56Qwen 3.8 27B: 3
Show 2 more areas that do not count toward the overall index
AreaGLM-5.3-FlashQwen 3.8 27B0 to 100, higher is betterResult
CybersecurityGLM-5.3-Flash aheadGLM-5.3-Flash: 42Qwen 3.8 27B: 19
Educationonly GLM-5.3-Flash has a scoreGLM-5.3-Flash: 63Qwen 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.
GLM-5.3-Flash
Reasoning (requested): high
Current attempt
- Run date
- Oct 1, 2026
- API provider
- openrouter
- Requested API model
- z-ai/glm-5.3-flash
- API model reported in response
- z-ai/glm-5.3-flash
- Reasoning setting
- high
- Pinned endpoint
- Z.AI | z-ai/glm-5.3-flash-20260826
- 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
- 49.7 s
Visually reviewed. This individual test does not establish overall model quality.
Earlier attempts (1)
- Sep 7, 2026API request failedReasoning setting: high
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
GLM-5.3-Flash
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 | GLM-5.3-Flash | Qwen 3.8 27B |
|---|---|---|
| Intelligence | ||
| Overall index0 to 100, higher is better | 34 | 11 |
| Rank | Rank 32 to 41 of 95 | Rank 44 to 57 of 95 |
| Price per 1M tokens | ||
| Inputwhat you send | $0.15 | $0.04 |
| Outputwhat the model writes | $0.50 | $2.50 |
| Speed | ||
| Tokens per second | 78 | 40 |
| Technical | ||
| Context windowhow much text the model reads at once | 1 M tokens≈ 1,500 A4 pages | 262,144 tokens≈ 390 A4 pages |
| Knowledge cutoff | n/a | n/a |
| Released | Aug 26, 2026 | Aug 14, 2026 |
| Availability | Open Source | Active |
| Open weights | yes | 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: GLM-5.3-FlashB: Qwen 3.8 27B
Code MigrationOverall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 20.5%Qwen 3.8 27B: 14.2%Vals AIAs of 10/18/2026
CyberBench v1.1Overall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 67.9%Qwen 3.8 27B: 67.8%Vals AIAs of 10/20/2026
EMBOverall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 55.9%Qwen 3.8 27B: 59.7%Vals AIAs of 10/20/2026
Finance Agent (v2)Overall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 57.9%Qwen 3.8 27B: 48.6%Vals AIAs of 10/20/2026
GPQA DiamondOverall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 86.4%Qwen 3.8 27B: 88.9%Vals AIAs of 09/01/2026
IOIOverall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 52.5%Qwen 3.8 27B: 39.1%Vals AIAs of 10/24/2026
Legal Research BenchOverall · All-pass · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 45.2%Qwen 3.8 27B: 36.1%Vals AIAs of 10/26/2026
LegalBenchOverall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 83.9%Qwen 3.8 27B: 82.4%Vals AIAs of 10/13/2026
LiveCodeBenchOverall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 80.5%Qwen 3.8 27B: 84%Vals AIAs of 09/01/2026
MedScribeOverall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 88.9%Qwen 3.8 27B: 83.8%Vals AIAs of 10/13/2026
Show 54 more benchmarks
MMLU ProOverall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 86.1%Qwen 3.8 27B: 84.3%Vals AIAs of 09/01/2026
MMMU ProOverall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 86%Qwen 3.8 27B: 83.9%Vals AIAs of 09/01/2026
ProgramBenchOverall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 0%Qwen 3.8 27B: 0%Vals AIAs of 10/20/2026
ProofBench v1.1Overall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 21%Qwen 3.8 27B: 16%Vals AIAs of 10/24/2026
SkillsBenchOverall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 40.2%Qwen 3.8 27B: 38.1%Vals AIAs of 09/27/2026
SWE-bench VerifiedOverall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 92%Qwen 3.8 27B: 86%Vals AIAs of 09/01/2026
Tax Agent BenchOverall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 31.6%Qwen 3.8 27B: 30.9%Vals AIAs of 10/26/2026
TaxEval v2Overall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 75.6%Qwen 3.8 27B: 70.9%Vals AIAs of 09/01/2026
Terminal-Bench 2.1Overall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 62.9%Qwen 3.8 27B: 58.4%Vals AIAs of 10/01/2026
Terminal-Bench-ScienceOverall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 2.9%Qwen 3.8 27B: 0%Vals AIAs of 10/25/2026
Vibe Code Bench v1.1Overall · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 30.8%Qwen 3.8 27B: 64.9%Vals AIAs of 10/26/2026
Code MigrationCLI · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 7.4%Qwen 3.8 27B: 2.2%Vals AIAs of 10/18/2026
CyberBench v1.1Patch · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 85.7%Qwen 3.8 27B: 83.9%Vals AIAs of 10/20/2026
EMBComps · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 44.6%Qwen 3.8 27B: 53.3%Vals AIAs of 10/20/2026
Finance Agent (v2)Adjustments · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 53.2%Qwen 3.8 27B: 47.3%Vals AIAs of 10/20/2026
GPQA DiamondFew-Shot CoT · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 85.4%Qwen 3.8 27B: 88.9%Vals AIAs of 09/01/2026
IOIIOI 2024 · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 53.2%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 identicalGLM-5.3-Flash: 57.6%Qwen 3.8 27B: 45.5%Vals AIAs of 10/26/2026
LegalBenchConclusion Tasks · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 89.6%Qwen 3.8 27B: 88.4%Vals AIAs of 10/13/2026
LiveCodeBenchEasy · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 99.1%Qwen 3.8 27B: 99.1%Vals AIAs of 09/01/2026
MMLU ProBiology · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 93.9%Qwen 3.8 27B: 91.5%Vals AIAs of 09/01/2026
ProgramBenchAlmost Resolved · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 7%Qwen 3.8 27B: 1%Vals AIAs of 10/20/2026
SkillsBenchNo Skills · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 32.5%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 identicalGLM-5.3-Flash: 93.3%Qwen 3.8 27B: 90.2%Vals AIAs of 09/01/2026
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 10%Qwen 3.8 27B: 6.7%Vals AIAs of 10/26/2026
TaxEval v2Correctness · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 64%Qwen 3.8 27B: 60.1%Vals AIAs of 09/01/2026
Terminal-Bench 2.1Easy · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 91.7%Qwen 3.8 27B: 50%Vals AIAs of 10/01/2026
Terminal-Bench-ScienceEarth Sciences · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 0%Qwen 3.8 27B: 0%Vals AIAs of 10/25/2026
Code MigrationCOBOL · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 60%Qwen 3.8 27B: 50%Vals AIAs of 10/18/2026
CyberBench v1.1PoC · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 50%Qwen 3.8 27B: 51.7%Vals AIAs of 10/20/2026
EMBDataroom · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 65.7%Qwen 3.8 27B: 79.7%Vals AIAs of 10/20/2026
Finance Agent (v2)All-Pass · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 46.3%Qwen 3.8 27B: 36.8%Vals AIAs of 10/20/2026
GPQA DiamondZero-Shot CoT · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 87.4%Qwen 3.8 27B: 88.9%Vals AIAs of 09/01/2026
IOIIOI 2025 · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 56.7%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 identicalGLM-5.3-Flash: 90.8%Qwen 3.8 27B: 88.5%Vals AIAs of 10/26/2026
LegalBenchInterpretation Tasks · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 79.5%Qwen 3.8 27B: 82%Vals AIAs of 10/13/2026
LiveCodeBenchHard · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 53.4%Qwen 3.8 27B: 65.7%Vals AIAs of 09/01/2026
MMLU ProBusiness · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 91.4%Qwen 3.8 27B: 90.2%Vals AIAs of 09/01/2026
ProgramBenchFully Resolved · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 0%Qwen 3.8 27B: 0%Vals AIAs of 10/20/2026
SkillsBenchWith Skills · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 40.2%Qwen 3.8 27B: 38.1%Vals AIAs of 09/27/2026
SWE-bench Verified>4 hours · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 100%Qwen 3.8 27B: 66.7%Vals AIAs of 09/01/2026
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 52.4%Qwen 3.8 27B: 48.3%Vals AIAs of 10/26/2026
TaxEval v2Stepwise Reasoning · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 87.2%Qwen 3.8 27B: 81.6%Vals AIAs of 09/01/2026
Terminal-Bench 2.1Hard · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 38.9%Qwen 3.8 27B: 43.3%Vals AIAs of 10/01/2026
Terminal-Bench-ScienceEngineering Sciences · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 0%Qwen 3.8 27B: 0%Vals AIAs of 10/25/2026
Code MigrationCode Quality · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 4.355 / 5Qwen 3.8 27B: 4.197 / 5Vals AIAs of 10/18/2026
EMBDCF · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 59.9%Qwen 3.8 27B: 50%Vals AIAs of 10/20/2026
Finance Agent (v2)Comparables · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 45.9%Qwen 3.8 27B: 38.9%Vals AIAs of 10/20/2026
IOIIOI 2026 · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 47.7%Qwen 3.8 27B: 36.8%Vals AIAs of 10/24/2026
Legal Research BenchBusiness & Commercial · All-pass · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 44.2%Qwen 3.8 27B: 41.9%Vals AIAs of 10/26/2026
LegalBenchIssue Tasks · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 90.1%Qwen 3.8 27B: 90.2%Vals AIAs of 10/13/2026
LiveCodeBenchMedium · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 89%Qwen 3.8 27B: 87.2%Vals AIAs of 09/01/2026
MMLU ProChemistry · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 91.1%Qwen 3.8 27B: 91.8%Vals AIAs of 09/01/2026
ProgramBenchRaw Pass Rate · higher is betterTest setup not documented as identicalGLM-5.3-Flash: 48.6%Qwen 3.8 27B: 11.2%Vals AIAs of 10/20/2026
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