Standard Compute
Model comparison 2026

DeepSeek V4.1 Flash vs GLM 5.3

DeepSeek V4.1 Flash
DeepSeek · Budget · Open weights
$0.22/1M · 1.0M ctx
GLM 5.3
Z.AI · Frontier · Open weights
$1.50/1M · 1.0M ctx

Community vote

Pick a winner in each dimension. You can change your vote any time.

Output Quality
Correctness and depth of what it produces
Agentic Ability
Tool calls, instruction-following, and multi-step tasks
Speed
Tokens per second and time-to-first-token
Value for money
How much capability you get per dollar
Reliability
Consistent results: fewer refusals, loops and format breaks

Specs and pricing side by side

Spec
DeepSeek V4.1 Flash
GLM 5.3
Maker
DeepSeek
Z.AI
Blended price / 1M
$0.22
$1.50
Input / output
$0.04 in · $0.63 out / 1M tokens
$0.08 in · $4.80 out / 1M tokens
Context window
1.0M
1.0M
Open weights
Yes
Yes
Tool use
Yes
Yes
Reasoning
Yes
Yes
Output Quality
8.8
9.3
Agentic Ability
8.8
9.4
Speed
9.4
7.8
Value for money
10.0
9.0
Reliability
8.8
8.8

Pricing and capabilities synced from the OpenRouter catalogue. Scores are editorial (0–10).

Verdict: DeepSeek V4.1 Flash or GLM 5.3?

Updated 2026-10-13

Choose DeepSeek V4.1 Flash if you want cheap, high-volume open-weight agent work. Choose GLM 5.3 if you want open-weight coding agents that need near-frontier agentic ability.

Editorially it's close: each model leads in 2 of our five dimensions. On price, DeepSeek V4.1 Flash runs about $0.22 per 1M tokens (blended) and is open-weight; GLM 5.3 is about $1.50 and open-weight.

Where DeepSeek V4.1 Flash falls short
  • Well below the frontier on long agentic tasks
  • DeepSeek API prices differ between peak and off-peak hours
Full DeepSeek V4.1 Flash breakdown →
Where GLM 5.3 falls short
  • Custom license with conditions for very large hosting providers
  • Reasoning cannot be turned off
Full GLM 5.3 breakdown →

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