GLM 5.3 Flash vs GPT-5.6 Terra
Price, context window & benchmark comparison
VS
Compare different models
Verdict: GLM 5.3 Flash is 90.9× cheaper than GPT-5.6 Terra on a typical 3:1 input/output mix. GPT-5.6 Terra scores higher on the Artificial Analysis Intelligence Index (32.3 vs 27.8). GPT-5.6 Terra has the larger context window (1.1M vs 1M).
| GLM 5.3 Flash | GPT-5.6 Terra | |
|---|---|---|
| Input price / 1M | $0.0399 | $2.00 |
| Output price / 1M | $0.0784 | $12.00 |
| Blended price (3:1) | $0.0495 | $4.50 |
| Cached input / 1M | $0.03 | $0.20 |
| Context window | 1M | 1.1M |
| Max output | 131K | 128K |
| Intelligence index | 27.8 | 32.3 |
| Coding index | 71.5 | 76.7 |
| Providers | 42 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-08-26 | 2026-07-09 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, GLM 5.3 Flash or GPT-5.6 Terra?
GLM 5.3 Flash is 90.9× cheaper than GPT-5.6 Terra on a typical 3:1 input/output mix.
GLM 5.3 Flash vs GPT-5.6 Terra: which has a bigger context window?
GLM 5.3 Flash: 1,048,576 tokens. GPT-5.6 Terra: 1,050,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GLM 5.3 Flash ≈ $119.00, GPT-5.6 Terra ≈ $10,000.
More comparisons
GLM 5.3 Flash vs Gemini 4 CarbonGLM 5.3 Flash vs Claude Fable 5.2GLM 5.3 Flash vs Gemini Omni 1.2 FlashGLM 5.3 Flash vs Gemini Omni 1.1 FlashGLM 5.3 Flash vs Hy4GLM 5.3 Flash vs GLM 5.3 FlashX LegalGLM 5.3 Flash vs GPT-6.1 TerraGLM 5.3 Flash vs GPT-6.1 Terra ProGLM 5.3 Flash vs Kimi K3.1 ProGLM 5.3 Flash vs MiniMax M3.1 FlashGLM 5.3 Flash vs DeepSeek V4.1 Flash 1017GLM 5.3 Flash vs Nemotron 3.5 Super VLGLM 5.3 Flash vs Gemini 4 ArgonGLM 5.3 Flash vs Claude Haiku 5.5GLM 5.3 Flash vs Nano Banana 2.1GLM 5.3 Flash vs Mistral Large 4GPT-5.6 Terra vs Gemini 4 CarbonGPT-5.6 Terra vs Claude Fable 5.2GPT-5.6 Terra vs Gemini Omni 1.2 FlashGPT-5.6 Terra vs Gemini Omni 1.1 FlashGPT-5.6 Terra vs Hy4GPT-5.6 Terra vs GLM 5.3 FlashX LegalGPT-5.6 Terra vs GPT-6.1 TerraGPT-5.6 Terra vs GPT-6.1 Terra Pro