Model comparison
Claude Haiku 4.5 vs GLM-4.5
GLM-4.5 is the stronger model overall, scoring 41.4 to 39.3 on the Noometry Index.
Last verified . 20 shared benchmarks.
Summary
- They share 20 benchmarks with published results for both. Claude Haiku 4.5 scores higher in 5 categories and GLM-4.5 in 3 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GLM-4.5 leads 27.7 to 15.1.
- The biggest single-benchmark swing is SWE-bench Verified (bash only): 66.6% for Claude Haiku 4.5 and 54.2% for GLM-4.5.
- GLM-4.5 is cheaper at $0.60 / $2.20 per million input/output tokens, against $1 / $5 for Claude Haiku 4.5.
- Claude Haiku 4.5 accepts more context: 200K tokens versus 131K.
- GLM-4.5 has downloadable open weights; the other is API-only.
Side by side
| Claude Haiku 4.5 | GLM-4.5 | |
|---|---|---|
| Provider | Anthropic | Z.ai (Zhipu) |
| Noometry Index | 39.3 | 41.4 |
| Released | 2025-10-15 | 2025-07-27 |
| Weights | Proprietary | Open |
| Context window | 200K | 131K |
| Max output | 64K | 98K |
| Input $ / M tokens | $1 | $0.60 |
| Output $ / M tokens | $5 | $2.20 |
| Results tracked | 53 | 27 |
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Category by category
Coding Claude Haiku 4.5 leads
Claude Haiku 4.5: 43.9 (#71), GLM-4.5: 41.1 (#121)
| Benchmark | Claude Haiku 4.5 | GLM-4.5 |
|---|---|---|
| SWE-bench Verified (bash only) | 66.6% | 54.2% |
| WeirdML | 45.4% | 40.6% |
| LMArena Coding | 1454 | 1434 |
| ALE-Bench | 653.48 | 344.82 |
| LMArena WebDev | 1330 | — |
| SWE-bench Multilingual | 64.7% | — |
| SciCode | 43.3% | — |
| AlgoTune | — | 1.52 |
Agentic & Tool Use Not comparable
Claude Haiku 4.5: 33.5 (#50), GLM-4.5: —
| Benchmark | Claude Haiku 4.5 | GLM-4.5 |
|---|---|---|
| Terminal-Bench | 35.5% | — |
| Berkeley Function Calling Leaderboard | 68.7% | — |
| DeepResearch Bench | 45.5% | — |
| BALROG | 31.2% | — |
| ExploitBench | 13.7% | — |
| Vending-Bench 2 | 458.89 | — |
Reasoning GLM-4.5 leads
Claude Haiku 4.5: 15.1 (#310), GLM-4.5: 27.7 (#99)
| Benchmark | Claude Haiku 4.5 | GLM-4.5 |
|---|---|---|
| LMArena Hard Prompts | 1420 | 1430 |
| ARC-AGI-2 | 4% | — |
| Kagi LLM Benchmark | — | 57.9% |
| NYT Connections (extended) | 14.3% | — |
| ARC-AGI-1 | 47.7% | — |
| CritPt | 0% | — |
| Chess Puzzles | 8% | — |
| DTBench | 73.6% | — |
| LMCA | 30.9% | — |
| Epoch Capabilities Index | 142.42 | — |
| ForecastBench | 61.4 | — |
Math Claude Haiku 4.5 leads
Claude Haiku 4.5: 43.0 (#69), GLM-4.5: 36.3 (#119)
| Benchmark | Claude Haiku 4.5 | GLM-4.5 |
|---|---|---|
| LMArena Math | 1395 | 1427 |
| OTIS Mock AIME 2024-2025 | 66.7% | — |
| Omni-MATH | 56.1% | — |
| MATH Level 5 | 96.4% | — |
| FrontierMath (Feb 2025 set) | 5.9% | — |
| FrontierMath Tier 4 (v1) | 2.1% | — |
Knowledge Claude Haiku 4.5 leads
Claude Haiku 4.5: 37.6 (#146), GLM-4.5: 35.5 (#172)
| Benchmark | Claude Haiku 4.5 | GLM-4.5 |
|---|---|---|
| LMArena Expert | 1443 | 1433 |
| GPQA Diamond | 71.2% | — |
| Humanity's Last Exam | — | 8.3% |
| SimpleQA Verified | 13.2% | — |
| MMLU-Pro | 77.7% | — |
| Confabulations | — | 11.3% |
| Vectara Hallucination Rate | 9.8% | — |
| GPQA (HELM) | 60.5% | — |
Multimodal Not comparable
Claude Haiku 4.5: 27.0 (#111), GLM-4.5: —
| Benchmark | Claude Haiku 4.5 | GLM-4.5 |
|---|---|---|
| Blueprint-Bench 2 | 0% | — |
| LMArena Document | 1420 | — |
Multilingual GLM-4.5 leads
Claude Haiku 4.5: 50.1 (#124), GLM-4.5: 53.0 (#74)
| Benchmark | Claude Haiku 4.5 | GLM-4.5 |
|---|---|---|
| LMArena Non-English | 1376 | 1417 |
| LMArena Chinese | 1415 | 1465 |
| LMArena French | 1408 | 1423 |
| LMArena German | 1377 | 1406 |
| LMArena Japanese | 1339 | 1416 |
| LMArena Korean | 1346 | 1382 |
| LMArena Russian | 1380 | 1414 |
| LMArena Spanish | 1420 | 1454 |
Instruction Following GLM-4.5 leads
Claude Haiku 4.5: 71.6 (#144), GLM-4.5: 74.3 (#100)
| Benchmark | Claude Haiku 4.5 | GLM-4.5 |
|---|---|---|
| LMArena Instruction Following | 1414 | 1405 |
| IFEval | 80.1% | — |
Long Context Claude Haiku 4.5 leads
Claude Haiku 4.5: 43.6 (#86), GLM-4.5: 38.2 (#196)
| Benchmark | Claude Haiku 4.5 | GLM-4.5 |
|---|---|---|
| LMArena Longer Query | 1427 | 1413 |
| Fiction.LiveBench | — | 58.3% |
Writing & Preference Too close to call
Claude Haiku 4.5: 58.1 (#119), GLM-4.5: 57.7 (#121)
| Benchmark | Claude Haiku 4.5 | GLM-4.5 |
|---|---|---|
| LMArena Text | 1396 | 1430 |
| LMArena Creative Writing | 1371 | 1395 |
| LMArena Multi-Turn | 1409 | 1415 |
| Short-Story Creative Writing | — | 73.4% |
| EQ-Bench Creative Writing | — | 1343 |
| WildBench | 83.9% | — |
| EQ-Bench 4 | 1064 | — |
Frequently asked questions
Is Claude Haiku 4.5 better than GLM-4.5?
GLM-4.5 is the stronger model overall, scoring 41.4 to 39.3 on the Noometry Index.
Which is cheaper, Claude Haiku 4.5 or GLM-4.5?
GLM-4.5 is cheaper. It lists at $0.60 per million input tokens and $2.20 per million output tokens; Claude Haiku 4.5 lists at $1 and $5.
Is Claude Haiku 4.5 or GLM-4.5 better for coding?
Claude Haiku 4.5 scores higher on coding benchmarks: 43.9 versus 41.1 in the Noometry coding category.
Which has the bigger context window?
Claude Haiku 4.5 does, with 200K tokens against 131K.
How many benchmarks do Claude Haiku 4.5 and GLM-4.5 share?
20 benchmarks have published results for both models. Claude Haiku 4.5 has 53 scored results on Noometry and GLM-4.5 has 27.