Grok 4.3 vs Nemotron 3 Ultra: cost per task
Grok 4.3 is cheaper on 9 of 14 tasks and about 1.1x cheaper on average (geometric mean). Grok 4.3 has the higher LMArena Text score (1442 vs 1426).
| Task | Grok 4.3 | Nemotron 3 Ultra | Difference |
|---|---|---|---|
| Answer a chat question | 0.45¢ | 0.33¢ | 1.4x |
| Reply to a customer email | 0.27¢ | 0.86¢ | 3.2x |
| Write a 1,500-word blog post | 1.00¢ | 1.9¢ | 1.9x |
| Write 10 product descriptions | 0.43¢ | 0.75¢ | 1.7x |
| Translate 1,000 words | 1.3¢ | 3.0¢ | 2.3x |
| Proofread one page (500 words) | 0.60¢ | 1.0¢ | 1.7x |
| Summarize a 20-page PDF | 2.0¢ | 1.3¢ | 1.5x |
| Extract data from an invoice | 0.55¢ | 0.66¢ | 1.2x |
| Analyze a 200-row spreadsheet | 8.6¢ | 2.8¢ | 3.0x |
| Answer from 5 retrieved documents (RAG) | 0.89¢ | 0.99¢ | 1.1x |
| Classify 100 support tickets | 1.0¢ | 1.8¢ | 1.8x |
| Review 500 lines of code | 9.5¢ | 2.5¢ | 3.8x |
| Write a SQL query | 0.55¢ | 0.76¢ | 1.4x |
| Run a 50-step coding agent | 73¢ | 67¢ | 1.1x |
Specs and list prices
| Grok 4.3 | Nemotron 3 Ultra | |
|---|---|---|
| Input per 1M | $1.25 | $0.60 |
| Output per 1M | $2.50 | $2.40 |
| Cached input per 1M | $0.20 | $0.12 |
| Context | 1M | 262K |
| Providers | 4 | 5 |
| Reasoning | default | default |
| LMArena Text | 1442 | 1426 |
| Released | May 1, 2026 | Jun 4, 2026 |
FAQ
Is Grok 4.3 or Nemotron 3 Ultra cheaper?
Grok 4.3 is cheaper on 9 of 14 tasks and about 1.1x cheaper on average (geometric mean). Grok 4.3 has the higher LMArena Text score (1442 vs 1426).
How much does Grok 4.3 cost compared to Nemotron 3 Ultra per token?
Grok 4.3: $1.25 input and $2.50 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.