Comparison · Z.ai
GLM 5.3 Flash vs GLM 5.3 FlashX
Listed API prices of GLM 5.3 Flash and GLM 5.3 FlashX turned into the cost of the same three standard tasks. Output quality, speed and answer length are not compared.
Calculated impact cost per task and per month
For an L2 task (deep analysis over a 50,000-token document, 3 steps), GLM 5.3 Flash costs $0.0056 and GLM 5.3 FlashX $0.063 at the prices listed in the United States on , so GLM 5.3 Flash is 91.1 % less than GLM 5.3 FlashX, counting visible output only, without cache discounts or hidden reasoning.
| Task | GLM 5.3 Flash, per task | GLM 5.3 FlashX, per task | GLM 5.3 Flash, per month | GLM 5.3 FlashX, per month | GLM 5.3 Flash vs GLM 5.3 FlashX, per task |
|---|---|---|---|---|---|
| L1Micro-task (classification or strict JSON extraction) | $0.0001per L1 task | $0.0008per L1 task | $0.976per month | $11.75per month | −91.7 % |
| L2Deep analysis over a 50,000-token document | $0.0056per L2 task | $0.063per L2 task | $81.40per month | $913.67per month | −91.1 % |
| L3Agentic coding loop, 15 steps | $0.045per L3 task | $0.498per L3 task | $654.32per month | $7,270.58per month | −91.0 % |
Calculated Per month: 20 tasks an hour around the clock, 730 hours.
Prices USD per 1M tokens
| Price | GLM 5.3 Flash | GLM 5.3 FlashX |
|---|---|---|
| Input, per 1M tokens | $0.034 | $0.370 |
| Output, per 1M tokens | $0.083 | $1.25 |
| Price from | OpenRouter · source page (data) Published | OpenRouter · source page (data) Published |
| Read | · the United States | · the United States |
| Context window | 1,048,576 tokens | 1,048,576 tokens |
Price changes in the last 30 days
- The listed price of GLM 5.3 Flash changed on on OpenRouter: output 131,072 tokens → 943,718 tokens per 1M tokens.
- The listed price of GLM 5.3 Flash changed on on OpenRouter: input $0.02 → $0.05 per 1M tokens.
- The listed price of GLM 5.3 Flash changed on on OpenRouter: input $0.05 → $0.15, output $0.20 → $0.50 per 1M tokens.
- The listed price of GLM 5.3 Flash changed on on OpenRouter: output 943,717 tokens → 131,072 tokens per 1M tokens.
- The listed price of GLM 5.3 Flash changed on on OpenRouter: input $0.15 → $0.03, output $0.50 → $0.08 per 1M tokens.