Gemini 3.1 Pro Preview Custom Tools vs GLM 5 Turbo
GLM 5 Turbo costs 3.0x less per output token than Gemini 3.1 Pro Preview Custom Tools ($4.00 vs $12.00 per million). Updated October 22, 2026; no benchmark has tested both models yet.
- Coding
- No data
- Overall
- No data
- Output $/M
- $12.00
- Coding
- No data
- Overall
- No data
- Output $/M
- $4.00
Gemini 3.1 Pro Preview Custom Tools or GLM 5 Turbo: which to pick
Neither model has a coding score yet, so the two cannot be ranked on coding.
Pick Gemini 3.1 Pro Preview Custom Tools for a larger context window (1.05M against 203K tokens).
No benchmark has tested both yet. Gemini 3.1 Pro Preview Custom Tools has results on Vending-Bench 2; GLM 5 Turbo on Terminal-Bench Hard (Artificial Analysis run), ALE-Bench and AA Intelligence Index. 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
Neither has a coding score yet.
One side not measured
Intelligence
AA Intelligence Index
No call
Only GLM 5 Turbo has a AA Intelligence Index result, 26.6.
Directional only
Web design
Design Arena: websites
No call
Only GLM 5 Turbo has a Design Arena: websites result, 1262.
Directional only
Long documents
Listed context window
Gemini 3.1 Pro Preview Custom Tools
Gemini 3.1 Pro Preview Custom Tools takes 1.05M tokens against 203K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
GLM 5 Turbo
Gemini 3.1 Pro Preview Custom Tools $0.0080, GLM 5 Turbo $0.0032 per turn.
List prices
At a glance
- Coding index
- Gemini 3.1 Pro Preview Custom Tools not benchmarked, GLM 5 Turbo 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
- Gemini 3.1 Pro Preview Custom Tools $12.00 against GLM 5 Turbo $4.00 per million output tokens, 3.0x apart.
- Context window
- Gemini 3.1 Pro Preview Custom Tools takes 1.05M tokens, GLM 5 Turbo 203K.
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 Index2 boards measured
| Benchmark | Gemini 3.1 Pro Preview Custom Tools | GLM 5 Turbo | Leader |
|---|---|---|---|
| Terminal-Bench Hard (Artificial Analysis run) | Not measured | 33.3% | Only GLM 5 Turbo measured |
| ALE-Bench | Not measured | 634.0 | Only GLM 5 Turbo measured |
| Neither model has a result on the other 37 boards here | |||
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index1 board measured
| Benchmark | Gemini 3.1 Pro Preview Custom Tools | GLM 5 Turbo | Leader |
|---|---|---|---|
| AA Intelligence Index | Not measured | 26.6 | Only GLM 5 Turbo measured |
| Neither model has a result on the other 1 board here | |||
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index2 boards measured
| Benchmark | Gemini 3.1 Pro Preview Custom Tools | GLM 5 Turbo | Leader |
|---|---|---|---|
| τ²-Bench Telecom | Not measured | 98.5% | Only GLM 5 Turbo measured |
| Vending-Bench 2 | $3,774 | Not measured | Only Gemini 3.1 Pro Preview Custom Tools measured |
| Neither model has a result on the other 39 boards here | |||
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index2 boards measured
| Benchmark | Gemini 3.1 Pro Preview Custom Tools | GLM 5 Turbo | Leader |
|---|---|---|---|
| GPQA Diamond (Artificial Analysis run) | Not measured | 84.7% | Only GLM 5 Turbo measured |
| Humanity's Last Exam (Artificial Analysis run) | Not measured | 27.8% | Only GLM 5 Turbo measured |
| Neither model has a result on the other 20 boards here | |||
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards measured
| Benchmark | Gemini 3.1 Pro Preview Custom Tools | GLM 5 Turbo | Leader |
|---|---|---|---|
| Design Arena: websites | Not measured | 1262 | Only GLM 5 Turbo measured |
| Design Arena: UI components | Not measured | 1260 | Only GLM 5 Turbo measured |
| Design Arena: game dev | Not measured | 1248 | Only GLM 5 Turbo measured |
| Design Arena: data viz | Not measured | 1264 | Only GLM 5 Turbo measured |
| Design Arena: 3D | Not measured | 1247 | Only GLM 5 Turbo measured |
| Design Arena: all code categories | Not measured | 1261 | Only GLM 5 Turbo measured |
| Design Arena: SVG | Not measured | 1205 | Only GLM 5 Turbo measured |
| Design Arena: ASCII art | Not measured | 1160 | Only GLM 5 Turbo measured |
| Neither model has a result on the other 1 board here | |||
GeneralDirectional onlyPublic boards, shown as published, kept out of the index2 boards measured
| Benchmark | Gemini 3.1 Pro Preview Custom Tools | GLM 5 Turbo | Leader |
|---|---|---|---|
| IFBench | Not measured | 73.2% | Only GLM 5 Turbo measured |
| Long context reasoning (AA-LCR) | Not measured | 71.7% | Only GLM 5 Turbo measured |
| Neither model has a result on the other 44 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 5 Turbo costs less
Repository review
50K input + 3K output tokens
GLM 5 Turbo costs less
Agent loop
200K input + 10K output tokens
GLM 5 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 Custom Tools | Z.ai GLM 5 Turbo |
|---|---|---|
| Maker | Z.ai | |
| Weights | No public weights listed | No public weights listed |
| Released | February 25, 2026 | March 15, 2026 |
| Context window | 1.05M | 203K |
| Input $/Mtok | $2.00 | $1.20 |
| Output $/Mtok | $12.00 | $4.00 |
| Coding index | Not benchmarked | Not benchmarked |
| Independent measurements behind it | 0 | 0 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Gemini 3.1 Pro Preview Custom Tools better than GLM 5 Turbo for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Gemini 3.1 Pro Preview Custom Tools for a larger context window (1.05M against 203K tokens).
Which is cheaper, Gemini 3.1 Pro Preview Custom Tools or GLM 5 Turbo?
Gemini 3.1 Pro Preview Custom Tools costs $2.00 per million input tokens and $12.00 per million output tokens; GLM 5 Turbo costs $1.20 and $4.00. Cost per solved task is known for neither of them.
Which has the bigger context window, Gemini 3.1 Pro Preview Custom Tools or GLM 5 Turbo?
Gemini 3.1 Pro Preview Custom Tools, with 1.05M tokens against 203K.
Has any benchmark tested both Gemini 3.1 Pro Preview Custom Tools and GLM 5 Turbo?
No benchmark has tested both yet. Gemini 3.1 Pro Preview Custom Tools has results on Vending-Bench 2; GLM 5 Turbo on Terminal-Bench Hard (Artificial Analysis run), ALE-Bench and AA Intelligence Index. Compare them on price and context instead. Data as of October 22, 2026.