GLM 5.1 vs Qwen3.8 Omni Flash
Price, context window & benchmark comparison
VS
Compare different models
Verdict: Qwen3.8 Omni Flash is 6.4× cheaper than GLM 5.1 on a typical 3:1 input/output mix. Qwen3.8 Omni Flash has the larger context window (1M vs 205K).
| GLM 5.1 | Qwen3.8 Omni Flash | |
|---|---|---|
| Input price / 1M | $0.97 | $0.15 |
| Output price / 1M | $3.04 | $0.47 |
| Blended price (3:1) | $1.48 | $0.23 |
| Cached input / 1M | $0.18 | $0.016 |
| Context window | 205K | 1M |
| Max output | 128K | 131K |
| Intelligence index | 26.1 | — |
| Coding index | 55.8 | — |
| Providers | — | 1 |
| Best provider uptime (30m) | — | 100.0% |
| Vision input | No | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-04-07 | 2026-09-21 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, GLM 5.1 or Qwen3.8 Omni Flash?
Qwen3.8 Omni Flash is 6.4× cheaper than GLM 5.1 on a typical 3:1 input/output mix.
GLM 5.1 vs Qwen3.8 Omni Flash: which has a bigger context window?
GLM 5.1: 204,800 tokens. Qwen3.8 Omni Flash: 1,000,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GLM 5.1 ≈ $3,450, Qwen3.8 Omni Flash ≈ $535.00.
More comparisons
GLM 5.1 vs GLM 5.3 PrimeGLM 5.1 vs Qwen3.8 Max PrimeGLM 5.1 vs Command A+GLM 5.1 vs GPT-6 Luna ProGLM 5.1 vs GPT-6 LunaGLM 5.1 vs GPT-6 Sol ProGLM 5.1 vs GPT-6 SolGLM 5.1 vs Claude Opus 5.5GLM 5.1 vs MiMo-V2.6-Pro-UltraSpeedGLM 5.1 vs MiMo-V2.6-FlashGLM 5.1 vs Grok 4.7GLM 5.1 vs GLM 5.3 FlashXGLM 5.1 vs DeepSeek V4.1 FlashGLM 5.1 vs GPT-6 AstraGLM 5.1 vs GPT-6 Astra ProGLM 5.1 vs Qwen3.8 Max (0902)Qwen3.8 Omni Flash vs GLM 5.3 PrimeQwen3.8 Omni Flash vs Qwen3.8 Max PrimeQwen3.8 Omni Flash vs Command A+Qwen3.8 Omni Flash vs GPT-6 Luna ProQwen3.8 Omni Flash vs GPT-6 LunaQwen3.8 Omni Flash vs GPT-6 Sol ProQwen3.8 Omni Flash vs GPT-6 SolQwen3.8 Omni Flash vs Claude Opus 5.5