# Gemini 3.8 Flash, for research

By the SelGPT team. Updated October 1, 2026. Source: https://selgpt.app/models/gemini-3-8-flash

Gemini 3.8 Flash is Google’s fast model, good with long documents and research questions. In SelGPT it sits next to GPT-6.1, Claude and Kimi.

> Gemini 3.8 Flash is a fast model from Google that handles long documents and research questions well. SelGPT includes it in Plus from $9.99 a month billed yearly, about 400 messages a month, in the same chat as GPT-6.1, Claude Opus 5.5 and Kimi K3.

## What it is good at

- Research questions that need several sources pulled together.
- Long PDFs and reports.
- Quick, well-organised answers.

## Plans

It draws from your plan’s monthly allowance, shown as a percentage in the app. GPT-6 Luna stays unlimited on paid plans when the allowance runs out.

[See plans](https://selgpt.app/pricing)

## Questions

### Can I use Gemini and ChatGPT models in one app?

Yes. SelGPT includes Gemini 3.8 Flash alongside OpenAI’s GPT-6.1 Sol and GPT-6 Luna, Claude and others.

## Related

- [AI for research](https://selgpt.app/ai-for-research): Research with SelGPT: it searches the web, pulls several sources together, compares them and shows where every fact came from.
- [Chat with PDF](https://selgpt.app/chat-with-pdf): Upload a PDF to SelGPT and ask questions about it, get a summary, or pull out the key points, figures and dates. Free to try.
- [Models](https://selgpt.app/models): Every model in SelGPT: GPT-6 Luna, Claude Opus 5.5, GPT-6.1 Sol, Gemini 3.8 Flash, Kimi K3, DeepSeek, MiMo, GLM and Qwen, in one chat.
- [GPT-6 Luna](https://selgpt.app/models/gpt-6-luna): Use OpenAI’s GPT-6 Luna in SelGPT for everyday questions, writing, files and images, unlimited within fair use on every paid plan.
- [Claude Opus 5.5](https://selgpt.app/models/claude-opus-5-5): Use Anthropic’s Claude Opus 5.5, ranked #1 on the Artificial Analysis Intelligence Index, in SelGPT Plus from $9.99 a month billed yearly.
- [GPT-6.1 Sol](https://selgpt.app/models/gpt-6-1-sol): Use OpenAI’s GPT-6.1 Sol in SelGPT for writing, analysis and code, alongside Claude, Gemini and Kimi, from $9.99 a month billed yearly.