GPT-6 Luna vs Gemini 3.8 Flash
Rank, tier, score and price side by side, from our weekly rankings. Scores are editorial opinion based on public sources.
A
GPT-6 Luna
B
Gemini 3.8 Flash
- ProviderOpenAIGoogle
- Rank#22Higher rank#29
- TierAA
- Score84.1Higher score83.2
- PriceAPI $0.10 input / $0.50 output per 1M tokens ($0.01 cached input)API $0.75 input / $3.75 output per 1M tokens through Dec 31, 2026 ($1.50 / $7.50 from Jan 1, 2027)
- TaglineOpenAI's low-cost GPT-6 tier for high-volume tasks such as extraction, summarization and routing, with a 1.05M-token context window.Google's fast Flash model tuned for complex agentic tasks at scale.
| Attribute | GPT-6 Luna | Gemini 3.8 Flash |
|---|---|---|
| Provider | OpenAI | |
| Rank | #22Higher rank | #29 |
| Tier | A | A |
| Score | 84.1Higher score | 83.2 |
| Price | API $0.10 input / $0.50 output per 1M tokens ($0.01 cached input) | API $0.75 input / $3.75 output per 1M tokens through Dec 31, 2026 ($1.50 / $7.50 from Jan 1, 2027) |
| Tagline | OpenAI's low-cost GPT-6 tier for high-volume tasks such as extraction, summarization and routing, with a 1.05M-token context window. | Google's fast Flash model tuned for complex agentic tasks at scale. |