Model comparison
DeepSeek V4 Flash vs GLM 5.1 Fast
Compare DeepSeek V4 Flash and GLM 5.1 Fast: input/output $/Mtoken, context window, modalities, and license. OpenRouter-synced pricing.
Accounts
DeepSeek V4 Flash
Fast DeepSeek V4 lane for economical reasoning, coding, and long-context work
Accounts
GLM 5.1 Fast
Efficient GLM model for fast reasoning, coding, and agent workflows
| Metric | DeepSeek V4 Flash | GLM 5.1 Fast |
|---|---|---|
| Provider | Accounts | Accounts |
| Context window | 1,000,000 | 202,800 |
| Input $/Mtok | $0.140 | $2.80 |
| Output $/Mtok | $0.280 | $8.80 |
| Modalities | text | text |
| License | open-weights | open-weights |
Quick take
On input price, DeepSeek V4 Flash is cheaper at $0.140/Mtok. For context window, DeepSeek V4 Flash leads with 1,000,000 tokens.
Pick based on your workload: high-volume cheap inference vs long-document / agent loops. Enterprise DNA can wire either model into Omni with evals, secrets, and job orchestration.