Model comparison
Claude Haiku 5.5 vs GLM-5.3
GLM-5.3 is the stronger model overall, scoring 54.8 to 49.5 on the Noometry Index. Claude Haiku 5.5 costs 11× less per token, which makes it the better buy when GLM-5.3's lead doesn't matter for your workload.
Last verified . 8 shared benchmarks.
Summary
- They share 8 benchmarks with published results for both. Claude Haiku 5.5 scores higher in 1 category and GLM-5.3 in 3 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Haiku 5.5 leads 73.6 to 62.3.
- The biggest single-benchmark swing is SimpleQA Verified: 23.8% for Claude Haiku 5.5 and 41% for GLM-5.3.
- Claude Haiku 5.5 is cheaper at $0.10 / $0.50 per million input/output tokens, against $1.40 / $4.40 for GLM-5.3.
- GLM-5.3 has downloadable open weights; the other is API-only.
Side by side
| Claude Haiku 5.5 | GLM-5.3 | |
|---|---|---|
| Provider | Anthropic | Z.ai (Zhipu) |
| Noometry Index | 49.5 | 54.8 |
| Released | 2026-10-07 | 2026-08-14 |
| Weights | Proprietary | Open |
| Context window | 1M | 1M |
| Max output | 128K | 131K |
| Input $ / M tokens | $0.10 | $1.40 |
| Output $ / M tokens | $0.50 | $4.40 |
| Results tracked | 9 | 42 |
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Category by category
Coding GLM-5.3 leads
Claude Haiku 5.5: 49.2 (#50), GLM-5.3: 59.5 (#14)
| Benchmark | Claude Haiku 5.5 | GLM-5.3 |
|---|---|---|
| LMArena WebDev | 1587 | 1622 |
| DeepSWE | — | 69% |
| FrontierCode | — | 40.1% |
| CursorBench | — | 42.6% |
| FrontierSWE | — | 30.2% |
| SciCode | — | 59% |
| WeirdML | — | 75.4% |
| LMArena Coding | — | 1496 |
| ALE-Bench | — | 1,317 |
Agentic & Tool Use Not comparable
Claude Haiku 5.5: —, GLM-5.3: 36.4 (#38)
| Benchmark | Claude Haiku 5.5 | GLM-5.3 |
|---|---|---|
| APEX-Agents | — | 56.6% |
| Vending-Bench 2 | — | 8,164 |
Reasoning GLM-5.3 leads
Claude Haiku 5.5: 35.2 (#69), GLM-5.3: 46.1 (#46)
| Benchmark | Claude Haiku 5.5 | GLM-5.3 |
|---|---|---|
| NYT Connections (extended) | 65.7% | 74.2% |
| Mystery Game Puzzles | 30% | 33% |
| CritPt | — | 19.1% |
| Chess Puzzles | — | 21% |
| LMArena Hard Prompts | — | 1489 |
| DTBench | — | 87.7% |
| LMCA | — | 55.5% |
| Bench to the Future 3 | — | 0.15 |
| Epoch Capabilities Index | — | 155.61 |
Math Claude Haiku 5.5 leads
Claude Haiku 5.5: 73.6 (#18), GLM-5.3: 62.3 (#33)
| Benchmark | Claude Haiku 5.5 | GLM-5.3 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 75.1% | 68.8% |
| FrontierMath Tier 4 | 46.3% | 29.3% |
| OTIS Mock AIME 2024-2025 | 98.9% | 91.1% |
| ProofBench | — | 49% |
| LMArena Math | — | 1489 |
Knowledge GLM-5.3 leads
Claude Haiku 5.5: 50.8 (#70), GLM-5.3: 58.3 (#37)
| Benchmark | Claude Haiku 5.5 | GLM-5.3 |
|---|---|---|
| GPQA Diamond | 89.6% | 90.9% |
| SimpleQA Verified | 23.8% | 41% |
| LMArena Expert | — | 1516 |
Multimodal Not comparable
Claude Haiku 5.5: 43.7 (#21), GLM-5.3: —
| Benchmark | Claude Haiku 5.5 | GLM-5.3 |
|---|---|---|
| Furniture Assembly | 47.5% | — |
Multilingual Not comparable
Claude Haiku 5.5: —, GLM-5.3: 55.7 (#28)
| Benchmark | Claude Haiku 5.5 | GLM-5.3 |
|---|---|---|
| LMArena Non-English | — | 1457 |
| LMArena Chinese | — | 1528 |
| LMArena French | — | 1499 |
| LMArena German | — | 1499 |
| LMArena Japanese | — | 1453 |
| LMArena Korean | — | 1472 |
| LMArena Russian | — | 1463 |
| LMArena Spanish | — | 1460 |
Instruction Following Not comparable
Claude Haiku 5.5: —, GLM-5.3: 77.5 (#23)
| Benchmark | Claude Haiku 5.5 | GLM-5.3 |
|---|---|---|
| LMArena Instruction Following | — | 1477 |
Long Context Not comparable
Claude Haiku 5.5: —, GLM-5.3: 45.4 (#41)
| Benchmark | Claude Haiku 5.5 | GLM-5.3 |
|---|---|---|
| LMArena Longer Query | — | 1482 |
Writing & Preference Not comparable
Claude Haiku 5.5: —, GLM-5.3: 75.7 (#6)
| Benchmark | Claude Haiku 5.5 | GLM-5.3 |
|---|---|---|
| LMArena Text | — | 1471 |
| LMArena Creative Writing | — | 1457 |
| EQ-Bench Creative Writing | — | 2075 |
| LMArena Multi-Turn | — | 1472 |
Frequently asked questions
Is Claude Haiku 5.5 better than GLM-5.3?
GLM-5.3 is the stronger model overall, scoring 54.8 to 49.5 on the Noometry Index. Claude Haiku 5.5 costs 11× less per token, which makes it the better buy when GLM-5.3's lead doesn't matter for your workload.
Which is cheaper, Claude Haiku 5.5 or GLM-5.3?
Claude Haiku 5.5 is cheaper. It lists at $0.10 per million input tokens and $0.50 per million output tokens; GLM-5.3 lists at $1.40 and $4.40.
Is Claude Haiku 5.5 or GLM-5.3 better for coding?
GLM-5.3 scores higher on coding benchmarks: 59.5 versus 49.2 in the Noometry coding category.
Which has the bigger context window?
Both accept 1M tokens.
How many benchmarks do Claude Haiku 5.5 and GLM-5.3 share?
8 benchmarks have published results for both models. Claude Haiku 5.5 has 9 scored results on Noometry and GLM-5.3 has 42.