Gemini 3.1 Pro Preview vs GLM 5V Turbo
Updated October 21, 2026. 65 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.
Decision reading
Pick Gemini 3.1 Pro Preview for coding: it scores 35.3 on the Vibe Coding Index against 28.8 for GLM 5V Turbo.
Pick GLM 5V Turbo when output tokens cost 3.0x less, or when what matters is Design Arena: agents building full-stack apps or Design Arena: agents building mobile apps, where it leads.
- Shared results
- 65
- Gemini 3.1 Pro Preview only
- 66
- GLM 5V Turbo only
- 0
- Like-for-like categories
- 8 of 9
Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.
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, four public coding benchmarks
Gemini 3.1 Pro Preview
Gemini 3.1 Pro Preview scores 35.3 against 28.8.
One benchmark behind each score
Intelligence
AA Intelligence Index
Gemini 3.1 Pro Preview
Gemini 3.1 Pro Preview leads, 29.7 against 23.5.
Same board, both measured
Agentic work
AA Agentic Index
No call
Only Gemini 3.1 Pro Preview has a AA Agentic Index result, 8.2.
Directional only
Reasoning
GPQA Diamond
No call
Only Gemini 3.1 Pro Preview has a GPQA Diamond result, 95.5%.
Directional only
Math
AIME
No call
Only Gemini 3.1 Pro Preview has a AIME result, 98.1%.
Directional only
Knowledge
MMLU Pro
No call
Only Gemini 3.1 Pro Preview has a MMLU Pro result, 91.0%.
Directional only
Web design
Design Arena: websites
Gemini 3.1 Pro Preview
Gemini 3.1 Pro Preview leads, 1234 against 1230.
Same board, both measured
Long documents
Listed context window
Gemini 3.1 Pro Preview
Gemini 3.1 Pro Preview takes 1.05M tokens against 203K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
GLM 5V Turbo
Gemini 3.1 Pro Preview $0.0080, GLM 5V Turbo $0.0032 per turn.
List prices
Cost per solved task
One SWE-bench Verified task, solved
No call
Only Gemini 3.1 Pro Preview has the number, $0.99.
Directional only
At a glance
- Coding index
- Gemini 3.1 Pro Preview 35.3 from 1 benchmark, GLM 5V Turbo 28.8 from 1 benchmark.
- Widest category
- Coding, 10.8 points apart on average over 7 shared benchmarks.
- Widest single gap
- Design Arena: agents building Godot games: Gemini 3.1 Pro Preview 1236 against GLM 5V Turbo 957, 34.9 points apart on a 0 to 100 scale.
- Output price
- Gemini 3.1 Pro Preview $12.00 against GLM 5V Turbo $4.00 per million output tokens, 3.0x apart.
- Context window
- Gemini 3.1 Pro Preview takes 1.05M tokens, GLM 5V Turbo 203K.
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 | Gemini 3.1 Pro Preview | Bars | GLM 5V Turbo | Ties |
|---|---|---|---|---|
| Coding | 7 | 0 | ||
| Intelligence | 1 | 0 | ||
| Agentic work | 4 | 5 | ||
| Reasoning | 7 | 0 | ||
| Math | 2 | 0 | ||
| Knowledge | 4 | 0 | ||
| Web design | 7 | 1 | ||
| General | 27 | 0 | ||
| All shared boards | 59 | 6 |
CodingLike-for-likeFour of these boards feed the Vibe Coding Index70
| Benchmark | Gemini 3.1 Pro Preview | GLM 5V Turbo | Leader |
|---|---|---|---|
| LMArena WebDev | 1447 | 1402 | Gemini 3.1 Pro Preview |
| AA Coding Index | 68.8 | Not measured | Only Gemini 3.1 Pro Preview measured |
| LiveCodeBench (Vals AI) | 88.5% | Not measured | Only Gemini 3.1 Pro Preview measured |
| SWE-bench Verified (Vals AI) | 78.8% | Not measured | Only Gemini 3.1 Pro Preview measured |
| Terminal-Bench 4 (Vals AI) | 2.5% | Not measured | Only Gemini 3.1 Pro Preview measured |
| Vibe Code Bench (Vals AI) | 32.0% | Not measured | Only Gemini 3.1 Pro Preview measured |
| Code migration (Vals AI) | 17.3% | Not measured | Only Gemini 3.1 Pro Preview measured |
| ProgramBench (Vals AI) | 0.0% | Not measured | Only Gemini 3.1 Pro Preview measured |
| IOI (Vals AI) | 51.8% | Not measured | Only Gemini 3.1 Pro Preview measured |
| Terminal-Bench 2.1 (Vals AI) | 70.8% | Not measured | Only Gemini 3.1 Pro Preview measured |
| Vibe Code Bench 1-100 (Vals AI) | 6.7% | Not measured | Only Gemini 3.1 Pro Preview measured |
| SciCode | 58.7% | Not measured | Only Gemini 3.1 Pro Preview measured |
| Terminal-Bench Hard (Artificial Analysis run) | 53.8% | 32.6% | Gemini 3.1 Pro Preview |
| Terminal-Bench | 80.2% | Not measured | Only Gemini 3.1 Pro Preview measured |
| GSO-Bench | 22.6% | Not measured | Only Gemini 3.1 Pro Preview measured |
| WeirdML | 72.1% | Not measured | Only Gemini 3.1 Pro Preview measured |
| MirrorCode | 8.9% | Not measured | Only Gemini 3.1 Pro Preview measured |
| ALE-Bench | 1160.6 | Not measured | Only Gemini 3.1 Pro Preview measured |
| LMArena Text: coding | 1484 | 1466 | Gemini 3.1 Pro Preview |
| LMArena Text: software and IT | 1487 | 1460 | Gemini 3.1 Pro Preview |
| LMArena WebDev: React | 1438 | 1386 | Gemini 3.1 Pro Preview |
| LMArena WebDev: HTML | 1490 | 1356 | Gemini 3.1 Pro Preview |
| LMArena WebDev: from an image | 1481 | 1425 | Gemini 3.1 Pro Preview |
| Neither model has a result on the other 15 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
| Benchmark | Gemini 3.1 Pro Preview | GLM 5V Turbo | Leader |
|---|---|---|---|
| AA Intelligence Index | 29.7 | 23.5 | Gemini 3.1 Pro Preview |
| Neither model has a result on the other 1 board here | |||
Agentic workLike-for-likePublic boards, shown as published, kept out of the index45
| Benchmark | Gemini 3.1 Pro Preview | GLM 5V Turbo | Leader |
|---|---|---|---|
| AA Agentic Index | 8.2 | Not measured | Only Gemini 3.1 Pro Preview measured |
| Design Arena: agents building web apps | 1125 | 1124 | Gemini 3.1 Pro Preview |
| Design Arena: agents building full-stack apps | 1068 | 1149 | GLM 5V Turbo |
| Design Arena: agents building mobile apps | 1094 | 1134 | GLM 5V Turbo |
| Design Arena: agents building Android apps | 1055 | 1267 | GLM 5V Turbo |
| Design Arena: agents building Godot games | 1236 | 957 | Gemini 3.1 Pro Preview |
| Design Arena: agents building games | 1114 | 1102 | Gemini 3.1 Pro Preview |
| Design Arena: HTML slides | 1153 | 1120 | Gemini 3.1 Pro Preview |
| Design Arena: PowerPoint slides | 1064 | 1152 | GLM 5V Turbo |
| SREBench (Vals AI) | 0.0% | Not measured | Only Gemini 3.1 Pro Preview measured |
| Finance Agent (Vals AI) | 43.0% | Not measured | Only Gemini 3.1 Pro Preview measured |
| Tax Agent Bench (Vals AI) | 9.3% | Not measured | Only Gemini 3.1 Pro Preview measured |
| Legal Research Bench (Vals AI) | 20.7% | Not measured | Only Gemini 3.1 Pro Preview measured |
| Excel Modeling Benchmark (Vals AI) | 52.6% | Not measured | Only Gemini 3.1 Pro Preview measured |
| BioMysteryBench (Vals AI) | 60.0% | Not measured | Only Gemini 3.1 Pro Preview measured |
| Terminal-Bench-Science (Vals AI) | 1.4% | Not measured | Only Gemini 3.1 Pro Preview measured |
| Vals Science Index | 27.4% | Not measured | Only Gemini 3.1 Pro Preview measured |
| τ²-Bench Telecom | 95.6% | 98.5% | GLM 5V Turbo |
| APEX-Agents | 35.1% | Not measured | Only Gemini 3.1 Pro Preview measured |
| METR time horizons | 77.0% | Not measured | Only Gemini 3.1 Pro Preview measured |
| BALROG | 57.0% | Not measured | Only Gemini 3.1 Pro Preview measured |
| DeepResearch Bench | 47.8% | Not measured | Only Gemini 3.1 Pro Preview measured |
| PostTrainBench | 22.0% | Not measured | Only Gemini 3.1 Pro Preview measured |
| Vending-Bench 2 | $911 | Not measured | Only Gemini 3.1 Pro Preview measured |
| Neither model has a result on the other 15 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index70
| Benchmark | Gemini 3.1 Pro Preview | GLM 5V Turbo | Leader |
|---|---|---|---|
| GPQA Diamond | 95.5% | Not measured | Only Gemini 3.1 Pro Preview measured |
| MysteryMechanism (Vals AI) | 20.7% | Not measured | Only Gemini 3.1 Pro Preview measured |
| MMMU Pro (Vals AI) | 88.2% | Not measured | Only Gemini 3.1 Pro Preview measured |
| GPQA Diamond (Artificial Analysis run) | 94.1% | 80.9% | Gemini 3.1 Pro Preview |
| Humanity's Last Exam (Artificial Analysis run) | 47.0% | 17.1% | Gemini 3.1 Pro Preview |
| GPQA Diamond (Epoch AI run) | 94.4% | Not measured | Only Gemini 3.1 Pro Preview measured |
| ARC-AGI | 98.0% | Not measured | Only Gemini 3.1 Pro Preview measured |
| ARC-AGI-2 | 77.1% | Not measured | Only Gemini 3.1 Pro Preview measured |
| SimpleBench | 79.6% | Not measured | Only Gemini 3.1 Pro Preview measured |
| Chess puzzles | 51.0% | Not measured | Only Gemini 3.1 Pro Preview measured |
| Mystery game puzzles | 34.0% | Not measured | Only Gemini 3.1 Pro Preview measured |
| EBR-bench | 14.3% | Not measured | Only Gemini 3.1 Pro Preview measured |
| LMArena Text: hard prompts | 1485 | 1443 | Gemini 3.1 Pro Preview |
| LMArena Text: expert | 1483 | 1453 | Gemini 3.1 Pro Preview |
| LMArena Text: hard prompts in English | 1480 | 1456 | Gemini 3.1 Pro Preview |
| LMArena Vision: diagrams | 1311 | 1286 | Gemini 3.1 Pro Preview |
| LMArena Vision: homework | 1316 | 1273 | Gemini 3.1 Pro Preview |
| Neither model has a result on the other 4 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index20
| Benchmark | Gemini 3.1 Pro Preview | GLM 5V Turbo | Leader |
|---|---|---|---|
| AIME | 98.1% | Not measured | Only Gemini 3.1 Pro Preview measured |
| OTIS Mock AIME | 95.6% | Not measured | Only Gemini 3.1 Pro Preview measured |
| FrontierMath, tiers 1 to 3 | 59.6% | Not measured | Only Gemini 3.1 Pro Preview measured |
| FrontierMath, tier 4 | 26.8% | Not measured | Only Gemini 3.1 Pro Preview measured |
| ProofBench | 26.0% | Not measured | Only Gemini 3.1 Pro Preview measured |
| LMArena Text: math | 1486 | 1442 | Gemini 3.1 Pro Preview |
| LMArena Text: mathematical work | 1478 | 1447 | Gemini 3.1 Pro Preview |
| Neither model has a result on the other 6 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index40
| Benchmark | Gemini 3.1 Pro Preview | GLM 5V Turbo | Leader |
|---|---|---|---|
| MMLU Pro | 91.0% | Not measured | Only Gemini 3.1 Pro Preview measured |
| LegalBench (Vals AI) | 87.4% | Not measured | Only Gemini 3.1 Pro Preview measured |
| CaseLaw (Vals AI) | 64.8% | Not measured | Only Gemini 3.1 Pro Preview measured |
| CorpFin (Vals AI) | 64.5% | Not measured | Only Gemini 3.1 Pro Preview measured |
| TaxEval (Vals AI) | 72.9% | Not measured | Only Gemini 3.1 Pro Preview measured |
| MortgageTax (Vals AI) | 69.4% | Not measured | Only Gemini 3.1 Pro Preview measured |
| MedQA (Vals AI) | 96.4% | Not measured | Only Gemini 3.1 Pro Preview measured |
| MedCode (Vals AI) | 59.1% | Not measured | Only Gemini 3.1 Pro Preview measured |
| SimpleQA Verified | 73.5% | Not measured | Only Gemini 3.1 Pro Preview measured |
| LMArena Text: science | 1497 | 1448 | Gemini 3.1 Pro Preview |
| LMArena Text: medicine and healthcare | 1486 | 1433 | Gemini 3.1 Pro Preview |
| LMArena Text: legal and government | 1487 | 1436 | Gemini 3.1 Pro Preview |
| LMArena Text: business and finance | 1459 | 1435 | Gemini 3.1 Pro Preview |
| Neither model has a result on the other 4 boards here | |||
Web designLike-for-likePublic boards, shown as published, kept out of the index71
| Benchmark | Gemini 3.1 Pro Preview | GLM 5V Turbo | Leader |
|---|---|---|---|
| Design Arena: websites | 1234 | 1230 | Gemini 3.1 Pro Preview |
| Design Arena: UI components | 1226 | 1213 | Gemini 3.1 Pro Preview |
| Design Arena: game dev | 1203 | 1219 | GLM 5V Turbo |
| Design Arena: data viz | 1209 | 1202 | Gemini 3.1 Pro Preview |
| Design Arena: 3D | 1234 | 1209 | Gemini 3.1 Pro Preview |
| Design Arena: all code categories | 1231 | 1228 | Gemini 3.1 Pro Preview |
| Design Arena: SVG | 1285 | 1151 | Gemini 3.1 Pro Preview |
| Design Arena: ASCII art | 1270 | 1118 | Gemini 3.1 Pro Preview |
| Neither model has a result on the other 1 board here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index270
| Benchmark | Gemini 3.1 Pro Preview | GLM 5V Turbo | Leader |
|---|---|---|---|
| Public Benefits Bench (Vals AI) | 53.8% | Not measured | Only Gemini 3.1 Pro Preview measured |
| SAGE (Vals AI) | 48.7% | Not measured | Only Gemini 3.1 Pro Preview measured |
| MedScribe (Vals AI) | 76.1% | Not measured | Only Gemini 3.1 Pro Preview measured |
| Vals Multimodal Index | 56.1% | Not measured | Only Gemini 3.1 Pro Preview measured |
| IFBench | 77.1% | 61.1% | Gemini 3.1 Pro Preview |
| Long context reasoning (AA-LCR) | 82.0% | 70.3% | Gemini 3.1 Pro Preview |
| DTBench | 97.1% | Not measured | Only Gemini 3.1 Pro Preview measured |
| LMCA | 53.8% | Not measured | Only Gemini 3.1 Pro Preview measured |
| CL-bench | 20.8% | Not measured | Only Gemini 3.1 Pro Preview measured |
| Furniture assembly | 26.7% | Not measured | Only Gemini 3.1 Pro Preview measured |
| ExploitBench | 26.1% | Not measured | Only Gemini 3.1 Pro Preview measured |
| CL-bench Life | 16.9% | Not measured | Only Gemini 3.1 Pro Preview measured |
| LMArena Text | 1480 | 1437 | Gemini 3.1 Pro Preview |
| LMArena Text: instruction following | 1466 | 1423 | Gemini 3.1 Pro Preview |
| LMArena Text: creative writing | 1482 | 1417 | Gemini 3.1 Pro Preview |
| LMArena Vision | 1296 | 1264 | Gemini 3.1 Pro Preview |
| LMArena Text: English | 1478 | 1454 | Gemini 3.1 Pro Preview |
| LMArena Text: non-English | 1476 | 1420 | Gemini 3.1 Pro Preview |
| LMArena Text: Chinese | 1527 | 1491 | Gemini 3.1 Pro Preview |
| LMArena Text: German | 1490 | 1422 | Gemini 3.1 Pro Preview |
| LMArena Text: Japanese | 1491 | Not measured | Only Gemini 3.1 Pro Preview measured |
| LMArena Text: Korean | 1455 | 1397 | Gemini 3.1 Pro Preview |
| LMArena Text: French | 1487 | 1443 | Gemini 3.1 Pro Preview |
| LMArena Text: Spanish | 1481 | 1452 | Gemini 3.1 Pro Preview |
| LMArena Text: Russian | 1497 | 1432 | Gemini 3.1 Pro Preview |
| LMArena Text: Polish | 1498 | 1432 | Gemini 3.1 Pro Preview |
| LMArena Text: multi-turn | 1487 | 1431 | Gemini 3.1 Pro Preview |
| LMArena Text: longer queries | 1482 | 1438 | Gemini 3.1 Pro Preview |
| LMArena Text: writing and language | 1481 | 1420 | Gemini 3.1 Pro Preview |
| LMArena Text: entertainment and media | 1465 | 1407 | Gemini 3.1 Pro Preview |
| LMArena Vision: English | 1287 | 1274 | Gemini 3.1 Pro Preview |
| LMArena Vision: Chinese | 1364 | 1329 | Gemini 3.1 Pro Preview |
| LMArena Vision: reading text | 1304 | 1270 | Gemini 3.1 Pro Preview |
| LMArena Vision: humor | 1322 | 1268 | Gemini 3.1 Pro Preview |
| LMArena Vision: captioning | 1345 | 1264 | Gemini 3.1 Pro Preview |
| LMArena Vision: recognizing things | 1330 | 1241 | Gemini 3.1 Pro Preview |
| LMArena Vision: creative writing | 1324 | 1252 | Gemini 3.1 Pro Preview |
| LMArena Document | 1444 | 1416 | Gemini 3.1 Pro Preview |
| Neither model has a result on the other 8 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Gemini 3.1 Pro Preview | GLM 5V Turbo | 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
GLM 5V Turbo costs less
Repository review
50K input + 3K output tokens
GLM 5V Turbo costs less
Agent loop
200K input + 10K output tokens
GLM 5V Turbo 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 | Google Gemini 3.1 Pro Preview | Z.ai GLM 5V Turbo |
|---|---|---|
| Maker | Z.ai | |
| Weights | No public weights listed | No public weights listed |
| Released | February 19, 2026 | April 1, 2026 |
| Context window | 1.05M | 203K |
| Input $/Mtok | $2.00 | $1.20 |
| Output $/Mtok | $12.00 | $4.00 |
| Coding index | 35.3 | 28.8 |
| Independent measurements behind it | 1 | 1 |
| Cost per solved task | $0.99 | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Gemini 3.1 Pro Preview better than GLM 5V Turbo for coding?
Pick Gemini 3.1 Pro Preview for coding: it scores 35.3 on the Vibe Coding Index against 28.8 for GLM 5V Turbo. Pick GLM 5V Turbo when output tokens cost 3.0x less, or when what matters is Design Arena: agents building full-stack apps or Design Arena: agents building mobile apps, where it leads.
Which is cheaper, Gemini 3.1 Pro Preview or GLM 5V Turbo?
Gemini 3.1 Pro Preview costs $2.00 per million input tokens and $12.00 per million output tokens; GLM 5V Turbo costs $1.20 and $4.00. Cost per solved task is known for Gemini 3.1 Pro Preview only.
Which has the bigger context window, Gemini 3.1 Pro Preview or GLM 5V Turbo?
Gemini 3.1 Pro Preview, with 1.05M tokens against 203K.
How many benchmarks is the Gemini 3.1 Pro Preview vs GLM 5V Turbo comparison based on?
65 benchmarks have a result for both models as of October 21, 2026. Gemini 3.1 Pro Preview's coding index rests on 1 independent benchmark and GLM 5V Turbo's on 1. Where only one model has a result, the page says so instead of naming a winner.