Model comparison · updated 2026-10-02
Side-by-side pricing for1 million tokens
| Gemini 3.8 Flash | GPT-6 Luna | Verdict | |
|---|---|---|---|
| Provider | OpenAI | -- | |
| Context window | 1M | 1.05M | -- |
| Input / 1M tokens | $0.75 | $0.10 | GPT-6 Luna is 7.5x cheaper |
| Output / 1M tokens | $3.75 | $0.50 | GPT-6 Luna is 7.5x cheaper |
| Output:input ratio | 5x | 5x | -- |
| Tier | balanced | budget | -- |
Gemini 3.8 Flash: Introductory price through Dec 31, 2026; $1.50 / $7.50 from Jan 1, 2027.
Gemini 3.8 Flash
13,333,333 tokens
GPT-6 Luna
100,000,000 tokens
GPT-6 Luna gives you 7.5x more input for the same budget.
Gemini 3.8 Flash
2,666,667 tokens
GPT-6 Luna
20,000,000 tokens
GPT-6 Luna gives you 7.5x more output for the same budget.