GLM 4.5 Air vs GPT-6 Sol Pro
Price, context window & benchmark comparison
VS
Compare different models
Verdict: GLM 4.5 Air is 12.9× cheaper than GPT-6 Sol Pro on a typical 3:1 input/output mix. GPT-6 Sol Pro has the larger context window (1.1M vs 131K).
| GLM 4.5 Air | GPT-6 Sol Pro | |
|---|---|---|
| Input price / 1M | $0.13 | $2.00 |
| Output price / 1M | $0.85 | $10.00 |
| Blended price (3:1) | $0.31 | $4.00 |
| Cached input / 1M | $0.025 | $0.20 |
| Context window | 131K | 1.1M |
| Max output | 98K | 128K |
| Intelligence index | — | — |
| Coding index | — | — |
| Providers | — | 6 |
| Best provider uptime (30m) | — | 100.0% |
| Vision input | No | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2025-07-25 | 2026-09-22 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, GLM 4.5 Air or GPT-6 Sol Pro?
GLM 4.5 Air is 12.9× cheaper than GPT-6 Sol Pro on a typical 3:1 input/output mix.
GLM 4.5 Air vs GPT-6 Sol Pro: which has a bigger context window?
GLM 4.5 Air: 131,072 tokens. GPT-6 Sol Pro: 1,050,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GLM 4.5 Air ≈ $685.00, GPT-6 Sol Pro ≈ $9,000.
More comparisons
GLM 4.5 Air vs GLM 5.3 PrimeGLM 4.5 Air vs Qwen3.8 Max PrimeGLM 4.5 Air vs Command A+GLM 4.5 Air vs GPT-6 Luna ProGLM 4.5 Air vs GPT-6 LunaGLM 4.5 Air vs GPT-6 SolGLM 4.5 Air vs Claude Opus 5.5GLM 4.5 Air vs MiMo-V2.6-Pro-UltraSpeedGLM 4.5 Air vs MiMo-V2.6-FlashGLM 4.5 Air vs Grok 4.7GLM 4.5 Air vs Qwen3.8 Omni FlashGLM 4.5 Air vs GLM 5.3 FlashXGLM 4.5 Air vs DeepSeek V4.1 FlashGLM 4.5 Air vs GPT-6 AstraGLM 4.5 Air vs GPT-6 Astra ProGLM 4.5 Air vs Qwen3.8 Max (0902)GPT-6 Sol Pro vs GLM 5.3 PrimeGPT-6 Sol Pro vs Qwen3.8 Max PrimeGPT-6 Sol Pro vs Command A+GPT-6 Sol Pro vs GPT-6 Luna ProGPT-6 Sol Pro vs GPT-6 LunaGPT-6 Sol Pro vs GPT-6 SolGPT-6 Sol Pro vs Claude Opus 5.5GPT-6 Sol Pro vs MiMo-V2.6-Pro-UltraSpeed