Google · Lighter on credits
Write fiction with Gemini 3.8 Flash
Yes. On WriteWithPaige, writers on a paid plan can pick Gemini 3.8 Flash, made by Google, for any reply in their story. It reads your chapters and Story Bible and writes into your book, the same way Paige does. Each Gemini 3.8 Flash reply uses credits: about 16–43 for a chat reply and about 29–69 for a new chapter. Paige stays the default and is included in every plan.
Updated October 23, 2026
Gemini 3.8 Flash at a glance
- Made by
- Released
- September 2, 2026(Google: Gemini 3.8 Flash announcement)
- Context window
- About 1 million tokens (1,048,576)(Google: Gemini 3.8 Flash model docs)
- Group on WriteWithPaige
- Lighter on credits
- Credits a reply
- About 16–43 for chat, 21–55 to continue, 29–69 for a new chapter
What Google says: Google calls it its best reasoning model yet at the speed and low cost of the Flash line.(Google: Gemini 3.8 Flash announcement)
What Gemini 3.8 Flash is good at, and where it's weaker
Good for
- Once it starts writing it is one of the fastest models measured.(eesel: Gemini 3.8 Flash review)
- Light on credits, good for quick drafts and brainstorming.
Weaker at
- A review measured a slow start, about 13 seconds before the first word, and called it very wordy.(eesel: Gemini 3.8 Flash review)
- We found no test of its prose quality.
Gemini 3.8 Flash or Paige?
Paige
Built for fiction and included in every plan. She knows the workspace best, runs Adventures, and writes the scenes you ask for within our content rules. No credits.
Gemini 3.8 Flash
A second voice from Google. Fast and light on credits. It follows Google's content rules and uses about 16–43 credits a chat reply.
A simple way to choose: write with Paige, and when a scene stalls, ask Gemini 3.8 Flash for the same scene. Keep the reply you like.
Gemini 3.8 Flash compared with similar models
Same story, same workspace. These differ in voice, speed and credits.
| Model | Maker | Group | Best for in fiction | Context | Credits a replychat · continue · new chapter |
|---|---|---|---|---|---|
| Gemini 3.8 Flash | Lighter on credits | Fast and light on credits. | 1M tokens | 16–43 · 21–55 · 29–69 | |
| DeepSeek V4 Pro | DeepSeek | Lighter on credits | Thinks hard about plot and continuity, light on credits. | 1M tokens | 10–29 · 11–34 · 11–34 |
| GLM 5.3 | Z.ai | Lighter on credits | The fewest credits per reply of any model here. | 1M tokens | 2–5 · 3–7 · 4–9 |
| Claude Sonnet 5.5 | Anthropic | Strong all-rounder | Claude quality at about half the credits of Opus. | 1M tokens | 32–89 · 36–107 · 40–112 |
Try Gemini 3.8 Flash in three steps
- 1
Create a free account
Start with Paige on a real chapter.
- 2
Choose a paid plan
Other models are part of every paid plan. Paige stays included.
- 3
Pick Gemini 3.8 Flash
Tap "Writing with: Paige" beside the chat box and choose Gemini 3.8 Flash. Add credits when you need them: packs from US$10 (€10 in the eurozone) for 1,000 credits.
Frequently asked questions
Can I write a novel with Gemini 3.8 Flash?
Yes. On WriteWithPaige, writers on a paid plan can pick Gemini 3.8 Flash, made by Google, for any reply in their story. It reads your chapters and Story Bible and writes into your book, the same way Paige does. Each Gemini 3.8 Flash reply uses credits: about 16–43 for a chat reply and about 29–69 for a new chapter. Paige stays the default and is included in every plan.
How many credits does Gemini 3.8 Flash use?
About 16–43 credits for a chat reply, 21–55 to continue a chapter, and 29–69 for a new chapter. The lower number is a typical reply; the higher one is a long reply deep into a big book, because the model reads more of your story. Every reply shows what it used. Credits come in packs from US$10 (€10 in the eurozone) for 1,000 credits.
Does Gemini 3.8 Flash use my plan's daily messages?
No. Replies from Gemini 3.8 Flash are paid with credits, so they don't count against Paige's daily allowance. Switch back to Paige and your plan works as before.
Will Gemini 3.8 Flash write everything Paige writes?
Not always. Gemini 3.8 Flash follows Google's content rules, so it may turn down some requests or tone a scene down. A turned-down reply still uses credits. Paige is one tap away and is included in your plan.
Do I need a Google account or API key?
No. You pick Gemini 3.8 Flash inside WriteWithPaige and pay with credits. There is nothing to set up with Google.
Is Gemini 3.8 Flash better than Paige?
It depends on the scene. Paige is built for fiction, knows the workspace best and costs nothing extra. Gemini 3.8 Flash gives you a second voice: try it on a scene you're stuck on and keep whichever reply you like. Adventures always run on Paige.
Keep exploring
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Every model you can write with, side by side, with credits per reply.
Write fiction with DeepSeek V4 Pro
Thinks hard about plot and continuity, light on credits.
Write fiction with GLM 5.3
The fewest credits per reply of any model here.
Write fiction with Claude Sonnet 5.5
Claude quality at about half the credits of Opus.
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How Paige drafts, continues and edits a novel with you.
Best AI tools for fiction
How the main AI writing tools compare for novelists.
Plans and pricing
What each plan includes. Paige comes with every plan.
Sources
Facts about each model come from its maker and the reviews below. Credit ranges come from WriteWithPaige. We don't publish our own benchmark scores.
Write your next chapter with Gemini 3.8 Flash
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