Gemini 3.1 Flash Lite vs GPT-5.4 Nano: cost per task
GPT-5.4 Nano is cheaper on 13 of 14 tasks and about 2.5x cheaper on average (geometric mean).
| Task | Gemini 3.1 Flash Lite | GPT-5.4 Nano | Difference |
|---|---|---|---|
| Answer a chat question | 0.25¢ | 0.15¢ | 1.7x |
| Reply to a customer email | 0.09¢ | 0.02¢ | 5.3x |
| Write a 1,500-word blog post | 0.54¢ | 0.30¢ | 1.8x |
| Write 10 product descriptions | 0.45¢ | 0.13¢ | 3.4x |
| Translate 1,000 words | 0.70¢ | 0.20¢ | 3.5x |
| Proofread one page (500 words) | 0.18¢ | 0.11¢ | 1.7x |
| Summarize a 20-page PDF | 0.51¢ | 0.33¢ | 1.5x |
| Extract data from an invoice | 0.23¢ | 0.08¢ | 3.0x |
| Analyze a 200-row spreadsheet | 1.4¢ | 0.44¢ | 3.1x |
| Answer from 5 retrieved documents (RAG) | 0.42¢ | 0.12¢ | 3.6x |
| Classify 100 support tickets | 1.0¢ | 0.15¢ | 6.7x |
| Review 500 lines of code | 0.44¢ | 0.75¢ | 1.7x |
| Write a SQL query | 0.24¢ | 0.10¢ | 2.4x |
| Run a 50-step coding agent | 17¢ | 8.7¢ | 1.9x |
Specs and list prices
| Gemini 3.1 Flash Lite | GPT-5.4 Nano | |
|---|---|---|
| Input per 1M | $0.25 | $0.20 |
| Output per 1M | $1.50 | $1.25 |
| Cached input per 1M | $0.025 | $0.02 |
| Context | 1M | 400K |
| Providers | 8 | 4 |
| Reasoning | default | default |
| LMArena Text | - | 1401 |
| Released | May 7, 2026 | Mar 17, 2026 |
FAQ
Is Gemini 3.1 Flash Lite or GPT-5.4 Nano cheaper?
GPT-5.4 Nano is cheaper on 13 of 14 tasks and about 2.5x cheaper on average (geometric mean).
How much does Gemini 3.1 Flash Lite cost compared to GPT-5.4 Nano per token?
Gemini 3.1 Flash Lite: $0.25 input and $1.50 output per 1M tokens. GPT-5.4 Nano: $0.20 input and $1.25 output. Token prices alone mislead - models use different numbers of tokens for the same task, which is what the task table shows.