DeepSeek V4 Flash 0731 vs GLM 4.5 Air
Price, context window & benchmark comparison
VS
Compare different models
Verdict: DeepSeek V4 Flash 0731 is 3.0× cheaper than GLM 4.5 Air on a typical 3:1 input/output mix. DeepSeek V4 Flash 0731 has the larger context window (1.3M vs 131K).
| DeepSeek V4 Flash 0731 | GLM 4.5 Air | |
|---|---|---|
| Input price / 1M | $0.03 | $0.13 |
| Output price / 1M | $0.32 | $0.85 |
| Blended price (3:1) | $0.10 | $0.31 |
| Cached input / 1M | $0.016 | $0.025 |
| Context window | 1.3M | 131K |
| Max output | 944K | 98K |
| Intelligence index | 34.3 | — |
| Coding index | 69.1 | — |
| Providers | 30 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | No | No |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-07-31 | 2025-07-25 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, DeepSeek V4 Flash 0731 or GLM 4.5 Air?
DeepSeek V4 Flash 0731 is 3.0× cheaper than GLM 4.5 Air on a typical 3:1 input/output mix.
DeepSeek V4 Flash 0731 vs GLM 4.5 Air: which has a bigger context window?
DeepSeek V4 Flash 0731: 1,310,720 tokens. GLM 4.5 Air: 131,072 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: DeepSeek V4 Flash 0731 ≈ $220.00, GLM 4.5 Air ≈ $685.00.
More comparisons
DeepSeek V4 Flash 0731 vs GLM 5.3 PrimeDeepSeek V4 Flash 0731 vs Qwen3.8 Max PrimeDeepSeek V4 Flash 0731 vs Command A+DeepSeek V4 Flash 0731 vs GPT-6 Luna ProDeepSeek V4 Flash 0731 vs GPT-6 LunaDeepSeek V4 Flash 0731 vs GPT-6 Sol ProDeepSeek V4 Flash 0731 vs GPT-6 SolDeepSeek V4 Flash 0731 vs Claude Opus 5.5DeepSeek V4 Flash 0731 vs MiMo-V2.6-Pro-UltraSpeedDeepSeek V4 Flash 0731 vs MiMo-V2.6-FlashDeepSeek V4 Flash 0731 vs Grok 4.7DeepSeek V4 Flash 0731 vs Qwen3.8 Omni FlashDeepSeek V4 Flash 0731 vs GLM 5.3 FlashXDeepSeek V4 Flash 0731 vs DeepSeek V4.1 FlashDeepSeek V4 Flash 0731 vs GPT-6 AstraDeepSeek V4 Flash 0731 vs GPT-6 Astra ProGLM 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 Sol ProGLM 4.5 Air vs GPT-6 SolGLM 4.5 Air vs Claude Opus 5.5