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GPT-5.6 Luna price increase: output $0.60 → $1.20 per 1M tokens
OpenAI's GPT-5.6 Luna changed its list price between Aug 3, 2026 and Aug 21, 2026: input $0.10 → $0.20 and output $0.60 → $1.20 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 | 0.07¢ | 0.14¢ | $0.71 → $1.42 |
| Reply to a customer email | <0.01¢ | 0.02¢ | $0.08 → $0.16 |
| Write a 1,500-word blog post | 0.14¢ | 0.28¢ | $1.42 → $2.84 |
| Write 10 product descriptions | 0.06¢ | 0.13¢ | $0.64 → $1.28 |
| Translate 1,000 words | 0.10¢ | 0.19¢ | $0.97 → $1.94 |
| Proofread one page (500 words) | 0.05¢ | 0.10¢ | $0.52 → $1.05 |
| Summarize a 20-page PDF | 0.16¢ | 0.32¢ | $1.62 → $3.24 |
| Extract data from an invoice | 0.04¢ | 0.07¢ | $0.37 → $0.75 |
| Analyze a 200-row spreadsheet | 0.22¢ | 0.43¢ | $2.15 → $4.31 |
| Answer from 5 retrieved documents (RAG) | 0.06¢ | 0.11¢ | $0.57 → $1.14 |
| Classify 100 support tickets | 0.07¢ | 0.15¢ | $0.75 → $1.49 |
| Review 500 lines of code | 0.36¢ | 0.72¢ | $3.61 → $7.22 |
| Write a SQL query | 0.05¢ | 0.10¢ | $0.48 → $0.96 |
| Run a 50-step coding agent | 24¢ | 47¢ | $237 → $474 |