token.app › Compare › GLM 5.2 vs GPT-5.6 Terra
GLM 5.2 vs GPT-5.6 Terra
GPT-5.6 Terra leads on 5 of 5 shared benchmarks. GLM 5.2 is 5.8× cheaper per token on a blended 3:1 basis. GPT-5.6 Terra accepts the larger context window (1.1M).
Head to head
Blended price uses a 3:1 input:output mix
| GLM 5.2 | GPT-5.6 Terra | |
|---|---|---|
| Provider | Zhipu AI | OpenAI |
| Input $/1M | $0.252 | $1.00 |
| Output $/1M | $0.792 | $6.00 |
| Blended $/1M | $0.387 | $2.25 |
| Context window | 1.0M | 1.1M |
| Max output | 128K | 128K |
| Released | Jun 2026 | Jul 2026 |
| Licence | Open weights | Proprietary |
| GPQA Diamond | 91.9% | 93.3% |
| FrontierMath T1–3 | 59.2% | 86.0% |
| FrontierMath T4 | 29.3% | 70.7% |
| SimpleQA Verified | 38.1% | 43.1% |
| OTIS Mock AIME | 86.4% | 99.7% |
Benchmark scores independently run and published by Epoch AI, 'AI Benchmarking Hub', used under CC BY 4.0. Only benchmarks with a score for BOTH models are compared.
Choose GLM 5.2 if…
- Costs less per token — $0.387 vs $2.25 blended
- Open weights — self-hostable
Choose GPT-5.6 Terra if…
- Higher GPQA Diamond (93.3% vs 91.9%)
- Higher FrontierMath T1–3 (86.0% vs 59.2%)
- Higher FrontierMath T4 (70.7% vs 29.3%)
- Higher SimpleQA Verified (43.1% vs 38.1%)
- Larger context window (1.1M)
- Newer model (released Jul 2026)
FAQ
Which is better, GLM 5.2 or GPT-5.6 Terra?
Across the 5 benchmarks both models have independently-run scores for, GLM 5.2 leads on 0 and GPT-5.6 Terra leads on 5. Benchmarks are one input — price and context window are on this page too.
Is GLM 5.2 cheaper than GPT-5.6 Terra?
GLM 5.2 is cheaper: $0.387 versus $2.25 per million tokens blended at 3:1 input:output. Input alone: $0.252 vs $1.00. Output alone: $0.792 vs $6.00.
What context windows do GLM 5.2 and GPT-5.6 Terra have?
GLM 5.2: 1,048,576 tokens. GPT-5.6 Terra: 1,050,000 tokens.
Who makes GLM 5.2 and GPT-5.6 Terra?
GLM 5.2 is made by Zhipu AI. GPT-5.6 Terra is made by OpenAI.