GPT-6 Luna vs Nemotron 3 Ultra: cost per task
GPT-6 Luna is cheaper on 14 of 14 tasks and about 18.1x cheaper on average (geometric mean). GPT-6 Luna has the higher LMArena Text score (1443 vs 1426).
| Task | GPT-6 Luna | Nemotron 3 Ultra | Difference |
|---|---|---|---|
| Answer a chat question | 0.06¢ | 0.33¢ | 5.6x |
| Reply to a customer email | <0.01¢ | 0.86¢ | 118.7x |
| Write a 1,500-word blog post | 0.12¢ | 1.9¢ | 15.7x |
| Write 10 product descriptions | 0.05¢ | 0.75¢ | 14.0x |
| Translate 1,000 words | 0.08¢ | 3.0¢ | 36.0x |
| Proofread one page (500 words) | 0.04¢ | 1.0¢ | 23.0x |
| Summarize a 20-page PDF | 0.16¢ | 1.3¢ | 8.4x |
| Extract data from an invoice | 0.03¢ | 0.66¢ | 20.6x |
| Analyze a 200-row spreadsheet | 0.19¢ | 2.8¢ | 15.1x |
| Answer from 5 retrieved documents (RAG) | 0.05¢ | 0.99¢ | 18.4x |
| Classify 100 support tickets | 0.06¢ | 1.8¢ | 28.7x |
| Review 500 lines of code | 0.31¢ | 2.5¢ | 8.0x |
| Write a SQL query | 0.04¢ | 0.76¢ | 18.9x |
| Run a 50-step coding agent | 4.1¢ | 67¢ | 16.4x |
Specs and list prices
| GPT-6 Luna | Nemotron 3 Ultra | |
|---|---|---|
| Input per 1M | $0.10 | $0.60 |
| Output per 1M | $0.50 | $2.40 |
| Cached input per 1M | $0.01 | $0.12 |
| Context | 1.05M | 262K |
| Providers | 7 | 5 |
| Reasoning | default | default |
| LMArena Text | 1443 | 1426 |
| Released | Sep 22, 2026 | Jun 4, 2026 |
FAQ
Is GPT-6 Luna or Nemotron 3 Ultra cheaper?
GPT-6 Luna is cheaper on 14 of 14 tasks and about 18.1x cheaper on average (geometric mean). GPT-6 Luna has the higher LMArena Text score (1443 vs 1426).
How much does GPT-6 Luna cost compared to Nemotron 3 Ultra per token?
GPT-6 Luna: $0.10 input and $0.50 output per 1M tokens. Nemotron 3 Ultra: $0.60 input and $2.40 output. Token prices alone mislead - models use different numbers of tokens for the same task, which is what the task table shows.