GLM 5.3 Flash vs GPT-6.1 Sol
Price, context window & benchmark comparison
VS
Compare different models
Verdict: GLM 5.3 Flash is 80.4× cheaper than GPT-6.1 Sol on a typical 3:1 input/output mix. GPT-6.1 Sol scores higher on the Artificial Analysis Intelligence Index (54.5 vs 27.8). GPT-6.1 Sol has the larger context window (1.1M vs 1M).
| GLM 5.3 Flash | GPT-6.1 Sol | |
|---|---|---|
| Input price / 1M | $0.0149 | $2.00 |
| Output price / 1M | $0.15 | $10.00 |
| Blended price (3:1) | $0.0498 | $4.00 |
| Cached input / 1M | $0.0149 | $0.10 |
| Context window | 1M | 1.1M |
| Max output | 131K | 128K |
| Intelligence index | 27.8 | 54.5 |
| Coding index | 71.5 | — |
| Providers | 40 | 9 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-08-26 | 2026-09-29 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, GLM 5.3 Flash or GPT-6.1 Sol?
GLM 5.3 Flash is 80.4× cheaper than GPT-6.1 Sol on a typical 3:1 input/output mix.
GLM 5.3 Flash vs GPT-6.1 Sol: which has a bigger context window?
GLM 5.3 Flash: 1,048,576 tokens. GPT-6.1 Sol: 1,050,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GLM 5.3 Flash ≈ $106.95, GPT-6.1 Sol ≈ $9,000.
More comparisons
GLM 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 4GLM 5.3 Flash vs GPT-6.1 Sol ProGLM 5.3 Flash vs Claude Sonnet 5.5GLM 5.3 Flash vs GLM 5.3 PrimeGLM 5.3 Flash vs Qwen3.8 Max PrimeGLM 5.3 Flash vs Command A+GLM 5.3 Flash vs GPT-6 Luna ProGPT-6.1 Sol vs GPT-6.1 TerraGPT-6.1 Sol vs GPT-6.1 Terra ProGPT-6.1 Sol vs Kimi K3.1 ProGPT-6.1 Sol vs MiniMax M3.1 FlashGPT-6.1 Sol vs DeepSeek V4.1 Flash 1017GPT-6.1 Sol vs Nemotron 3.5 Super VLGPT-6.1 Sol vs Gemini 4 ArgonGPT-6.1 Sol vs Claude Haiku 5.5