GLM 4.5 Air vs GPT-6 Sol
Price, context window & benchmark comparison
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Compare different models
Verdict: GLM 4.5 Air is 12.9× cheaper than GPT-6 Sol on a typical 3:1 input/output mix. GPT-6 Sol has the larger context window (1.1M vs 131K).
| GLM 4.5 Air | GPT-6 Sol | |
|---|---|---|
| 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 | — | 47.5 |
| Coding index | — | — |
| Providers | — | 7 |
| 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?
GLM 4.5 Air is 12.9× cheaper than GPT-6 Sol on a typical 3:1 input/output mix.
GLM 4.5 Air vs GPT-6 Sol: which has a bigger context window?
GLM 4.5 Air: 131,072 tokens. GPT-6 Sol: 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 ≈ $9,000.
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