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GLM 5.3 Flash price increase: output $0.25 → $0.50 per 1M tokens
Z.ai's GLM 5.3 Flash changed its list price between Sep 2, 2026 and Sep 14, 2026: input $0.075 → $0.15 and output $0.25 → $0.50 per 1M tokens (+100%).
What it means per task
Same tokens as today's measurement, old price vs new price.
| Task | Before | After | Per 1,000 tasks |
|---|---|---|---|
| Answer a chat question | 0.04¢ | 0.09¢ | $0.45 → $0.90 |
| Reply to a customer email | <0.01¢ | 0.02¢ | $0.08 → $0.17 |
| Write a 1,500-word blog post | 0.17¢ | 0.35¢ | $1.74 → $3.47 |
| Write 10 product descriptions | 0.18¢ | 0.36¢ | $1.78 → $3.56 |
| Translate 1,000 words | 0.26¢ | 0.53¢ | $2.64 → $5.28 |
| Proofread one page (500 words) | 0.03¢ | 0.05¢ | $0.25 → $0.51 |
| Summarize a 20-page PDF | 0.14¢ | 0.29¢ | $1.43 → $2.86 |
| Extract data from an invoice | 0.03¢ | 0.06¢ | $0.29 → $0.57 |
| Analyze a 200-row spreadsheet | 0.44¢ | 0.87¢ | $4.37 → $8.73 |
| Answer from 5 retrieved documents (RAG) | 0.08¢ | 0.15¢ | $0.77 → $1.54 |
| Classify 100 support tickets | 0.21¢ | 0.41¢ | $2.06 → $4.12 |
| Review 500 lines of code | 0.43¢ | 0.87¢ | $4.34 → $8.68 |
| Write a SQL query | 0.04¢ | 0.08¢ | $0.41 → $0.82 |
| Run a 50-step coding agent | 18¢ | 36¢ | $179 → $358 |