Model comparison
GLM-5 vs GPT-6.1 Sol
GLM-5 has enough public results to be ranked (#59); GPT-6.1 Sol does not yet, so treat this comparison as directional.
Last verified . 0 shared benchmarks.
Summary
- The widest gap is in agentic & tool use, where GPT-6.1 Sol leads 34.3 to 30.9.
- GLM-5 is cheaper at $1 / $3.20 per million input/output tokens, against $2 / $10 for GPT-6.1 Sol.
- GPT-6.1 Sol accepts more context: 1.05M tokens versus 205K.
- GLM-5 has downloadable open weights; the other is API-only.
Side by side
| GLM-5 | GPT-6.1 Sol | |
|---|---|---|
| Provider | Z.ai (Zhipu) | OpenAI |
| Noometry Index | 45.9 | 42.1 |
| Released | 2026-02-11 | 2026-09-29 |
| Weights | Open | Proprietary |
| Context window | 205K | 1.05M |
| Max output | 131K | 128K |
| Input $ / M tokens | $1 | $2 |
| Output $ / M tokens | $3.20 | $10 |
| Results tracked | 45 | 2 |
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Category by category
Coding GPT-6.1 Sol leads
GLM-5: 49.0 (#47), GPT-6.1 Sol: 51.4
| Benchmark | GLM-5 | GPT-6.1 Sol |
|---|---|---|
| SWE-bench Verified | 72.1% | — |
| DeepSWE | — | 75.2% |
| SWE-bench Verified (bash only) | 72.8% | — |
| LMArena WebDev | 1434 | — |
| SWE-bench Multilingual | 69.7% | — |
| WeirdML | 48.2% | — |
| LMArena Coding | 1461 | — |
| ALE-Bench | 765.62 | — |
Agentic & Tool Use GPT-6.1 Sol leads
GLM-5: 30.9 (#65), GPT-6.1 Sol: 34.3
| Benchmark | GLM-5 | GPT-6.1 Sol |
|---|---|---|
| Terminal-Bench | 52.4% | — |
| τ²-bench Airline | 82.5% | — |
| τ²-bench Banking | 9.8% | — |
| τ²-bench Retail | 73.7% | — |
| τ²-bench Telecom | 86.8% | — |
| GDP.pdf | — | 32% |
| Vending-Bench 2 | 4,432 | — |
Reasoning Not comparable
GLM-5: 27.6 (#100), GPT-6.1 Sol: —
| Benchmark | GLM-5 | GPT-6.1 Sol |
|---|---|---|
| ARC-AGI-2 | 4.9% | — |
| SimpleBench | 53.2% | — |
| Kagi LLM Benchmark | 75% | — |
| NYT Connections (extended) | 74.8% | — |
| ARC-AGI-1 | 44.7% | — |
| Chess Puzzles | 10% | — |
| LMArena Hard Prompts | 1451 | — |
| Epoch Capabilities Index | 145.84 | — |
| ForecastBench | 61 | — |
Math Not comparable
GLM-5: 44.8 (#66), GPT-6.1 Sol: —
| Benchmark | GLM-5 | GPT-6.1 Sol |
|---|---|---|
| MathArena Final-Answer Competitions | 65.7% | — |
| OTIS Mock AIME 2024-2025 | 80% | — |
| LMArena Math | 1440 | — |
| FrontierMath (Feb 2025 set) | 16.4% | — |
| FrontierMath Tier 4 (v1) | 2.1% | — |
Knowledge Not comparable
GLM-5: 52.2 (#59), GPT-6.1 Sol: —
| Benchmark | GLM-5 | GPT-6.1 Sol |
|---|---|---|
| GPQA Diamond | 87.8% | — |
| Vectara Hallucination Rate | 10.1% | — |
| LMArena Expert | 1454 | — |
Multilingual Not comparable
GLM-5: 53.9 (#57), GPT-6.1 Sol: —
| Benchmark | GLM-5 | GPT-6.1 Sol |
|---|---|---|
| LMArena Non-English | 1430 | — |
| LMArena Chinese | 1511 | — |
| LMArena French | 1455 | — |
| LMArena German | 1445 | — |
| LMArena Japanese | 1416 | — |
| LMArena Korean | 1421 | — |
| LMArena Russian | 1436 | — |
| LMArena Spanish | 1452 | — |
Instruction Following Not comparable
GLM-5: 75.4 (#64), GPT-6.1 Sol: —
| Benchmark | GLM-5 | GPT-6.1 Sol |
|---|---|---|
| LMArena Instruction Following | 1427 | — |
Long Context Not comparable
GLM-5: 44.6 (#58), GPT-6.1 Sol: —
| Benchmark | GLM-5 | GPT-6.1 Sol |
|---|---|---|
| CL-bench | 18.7% | — |
| LMArena Longer Query | 1446 | — |
Writing & Preference Not comparable
GLM-5: 66.2 (#38), GPT-6.1 Sol: —
| Benchmark | GLM-5 | GPT-6.1 Sol |
|---|---|---|
| LMArena Text | 1446 | — |
| LMArena Creative Writing | 1438 | — |
| EQ-Bench Creative Writing | 1601 | — |
| LMArena Multi-Turn | 1456 | — |
Frequently asked questions
Is GLM-5 better than GPT-6.1 Sol?
GLM-5 has enough public results to be ranked (#59); GPT-6.1 Sol does not yet, so treat this comparison as directional.
Which is cheaper, GLM-5 or GPT-6.1 Sol?
GLM-5 is cheaper. It lists at $1 per million input tokens and $3.20 per million output tokens; GPT-6.1 Sol lists at $2 and $10.
Is GLM-5 or GPT-6.1 Sol better for coding?
GPT-6.1 Sol scores higher on coding benchmarks: 51.4 versus 49.0 in the Noometry coding category.
Which has the bigger context window?
GPT-6.1 Sol does, with 1.05M tokens against 205K.
How many benchmarks do GLM-5 and GPT-6.1 Sol share?
0 benchmarks have published results for both models. GLM-5 has 45 scored results on Noometry and GPT-6.1 Sol has 2.