Claude Haiku 4.5 Turbo vs GLM-4.6: which model should you choose?
We compared Claude Haiku 4.5 Turbo and GLM-4.6 on price, context window and 12 benchmarks. GLM-4.6 has the stronger average benchmark score; GLM-4.6 is cheaper on a blended 3:1 basis.
Claude Haiku 4.5 Turbo
Claude Haiku 4.5 Turbo is a multimodal model from Anthropic. It offers a 200,000-token context window, costs $14.37 per million input tokens and $54.76 per million output tokens, and averages 80.0 across the index's benchmark suite.
- Input
- $14.37 / 1M
- Output
- $54.76 / 1M
- Context
- 200,000
- Avg score
- 80.0
- Open weights
- No
GLM-4.6
GLM-4.6 is a multimodal model from Zhipu AI. It offers a 128,000-token context window, costs $5.10 per million input tokens and $18.45 per million output tokens, and averages 80.2 across the index's benchmark suite.
- Input
- $5.10 / 1M
- Output
- $18.45 / 1M
- Context
- 128,000
- Avg score
- 80.2
- Open weights
- Yes
Specification comparison
| Spec | Claude Haiku 4.5 Turbo | GLM-4.6 | Edge |
|---|---|---|---|
| Input price / 1M | $14.37 | $5.10 | B |
| Output price / 1M | $54.76 | $18.45 | B |
| Context window | 200,000 | 128,000 | A |
| Max output | 32,768 | 8,192 | A |
| Average score | 80.0 | 80.2 | B |
| Arena Elo | 1434.5 | 1440.7 | B |
| Open weights | No | Yes | B |
Benchmark comparison
Claude Haiku 4.5 Turbo wins 6, GLM-4.6 wins 6, and 0 benchmarks are tied. The table shows the modelled score for each model and the gap.
| Benchmark | Claude Haiku 4.5 Turbo | GLM-4.6 | Gap | Winner |
|---|---|---|---|---|
| MMLU-Pro | 80.6 | 84.0 | 3.4 | GLM-4.6 |
| GPQA Diamond | 75.1 | 78.3 | 3.2 | GLM-4.6 |
| SWE-bench Verified | 68.4 | 67.4 | 1.0 | Claude Haiku 4.5 Turbo |
| HumanEval | 87.0 | 83.8 | 3.2 | Claude Haiku 4.5 Turbo |
| MATH-500 | 83.7 | 83.4 | 0.3 | Claude Haiku 4.5 Turbo |
| AIME 2025 | 79.2 | 80.2 | 1.0 | GLM-4.6 |
| LiveCodeBench | 71.7 | 71.6 | 0.1 | Claude Haiku 4.5 Turbo |
| IFEval | 87.1 | 86.4 | 0.7 | Claude Haiku 4.5 Turbo |
| TruthfulQA | 81.0 | 82.5 | 1.5 | GLM-4.6 |
| HellaSwag | 88.1 | 89.4 | 1.3 | GLM-4.6 |
| MMMU | 77.7 | 75.4 | 2.3 | Claude Haiku 4.5 Turbo |
| Arena Elo | 1434.5 | 1440.7 | 6.2 | GLM-4.6 |
Price analysis
On a blended 3:1 input-to-output basis, Claude Haiku 4.5 Turbo costs about $24.47 per million tokens and GLM-4.6 costs about $8.44. GLM-4.6 is roughly 66% cheaper than Claude Haiku 4.5 Turbo. At high volume, that gap compounds quickly, so price should carry real weight unless the quality difference is decisive.
Claude Haiku 4.5 Turbo has the larger context window at 200,000 tokens, compared with 128,000 for GLM-4.6. That matters for long documents, large codebases and multi-step agent traces.
Verdict
Across 12 shared benchmarks, Claude Haiku 4.5 Turbo wins 6, GLM-4.6 wins 6, and 0 are tied. On the index average, GLM-4.6 leads Claude Haiku 4.5 Turbo by 0.2 points (80.2 versus 80.0).
The price picture favours GLM-4.6. The context picture favours Claude Haiku 4.5 Turbo. Those two dimensions often matter more than a few benchmark points once a model is good enough for the task.
If you need a single default, start with GLM-4.6 for quality-sensitive work, and check whether its price holds at your expected volume before committing.
Choose Claude Haiku 4.5 Turbo if
- You need the larger 200,000-token context window.
- You need the larger 32,768-token output limit.
Choose GLM-4.6 if
- You want the higher average benchmark score in this index.
- Unit cost matters and you want the cheaper blended price.
- You need open weights for self-hosting or fine-tuning.
FAQ
Is Claude Haiku 4.5 Turbo better than GLM-4.6?
On the index average, GLM-4.6 leads Claude Haiku 4.5 Turbo by 0.2 points (80.2 versus 80.0). The better choice depends on price, context and your task. Claude Haiku 4.5 Turbo wins 6 benchmarks, GLM-4.6 wins 6.
Which is cheaper, Claude Haiku 4.5 Turbo or GLM-4.6?
GLM-4.6 is cheaper on a blended 3:1 basis at about $8.44 per million tokens, versus $24.47 for Claude Haiku 4.5 Turbo.
Which has the larger context window?
Claude Haiku 4.5 Turbo has the larger context window at 200,000 tokens. GLM-4.6 has 128,000 tokens.
Are these models open weights?
Claude Haiku 4.5 Turbo is proprietary; GLM-4.6 is open weights.
Which should I choose for production?
If you need a single default, start with GLM-4.6 for quality-sensitive work, and check whether its price holds at your expected volume before committing.