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Paige — your AI writing partner for fictionWriteWithPaigeStart free

Other models, inside your story

Write fiction with Claude, GPT, Gemini, Grok, Kimi and more

WriteWithPaige lets writers on a paid plan pick another AI model for any reply in their story: 12 models from Anthropic, OpenAI, Google, xAI, Moonshot AI, Z.ai, DeepSeek. The model reads your chapters and Story Bible and writes into your book. Paige, our own fiction model, stays the default and is included in every plan. Other models use credits, sold in packs from US$10 (€10 in the eurozone) for 1,000 credits.

Updated October 23, 2026

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How it works

Paige is the default

Paige is built for fiction and is included in every plan, free plan too. Nothing changes unless you pick another model.

Pick a model for any reply

Want a different voice for a scene? Pick a model before you send. It reads your story and writes into your chapters. Switch back any time.

Pay with credits

Other models use credits, packs from US$10 (€10 in the eurozone) for 1,000 credits. A short chat reply costs less than a new chapter, and every reply shows what it used. They don't touch your daily messages.

Every model, side by side

Credit ranges are per reply: the lower number is a typical reply, the higher one a long reply deep into a big book. Context is how much text the model can read at once, as its maker states it.

AI models available on WriteWithPaige
ModelMakerGroupBest for in fictionContextCredits a replychat · continue · new chapter
PaigeWriteWithPaigeDefaultBuilt for fiction: drafting, continuing and editing inside your book.—Included in your plan
Claude Fable 5.1AnthropicMost capableAnthropic's most capable model. The deepest read of your whole story.1M tokens155–441 · 180–532 · 195–553
GPT-6 AstraOpenAIMost capableOpenAI's most capable model. Ambitious plotting and polished prose.1M tokens157–447 · 182–540 · 198–563
Claude Opus 5.5AnthropicStrong all-rounderCareful with long stories and subtle character work.1M tokens63–177 · 72–214 · 79–223
GPT-6.1 SolOpenAIStrong all-rounderFast, sharp and clean. A great everyday choice.1M tokens32–89 · 36–107 · 40–112
Gemini 4 ArgonGoogleStrong all-rounderStrong all-rounder with a huge memory for long books.1M tokens32–89 · 36–107 · 40–112
Grok 4.7xAIStrong all-rounderPunchy voice, quick replies, happy to take creative risks.500K tokens32–90 · 35–107 · 35–107
Kimi K3.1 ProMoonshot AIStrong all-rounderMoonshot's newest. Reads a whole long book at once and thinks before it writes.1M tokens37–102 · 50–132 · 70–166
GLM 5.3 PrimeZ.aiStrong all-rounderRich, descriptive long-form writing.—44–125 · 49–148 · 49–148
Claude Sonnet 5.5AnthropicStrong all-rounderClaude quality at about half the credits of Opus.1M tokens32–89 · 36–107 · 40–112
DeepSeek V4 ProDeepSeekLighter on creditsThinks hard about plot and continuity, light on credits.1M tokens10–29 · 11–34 · 11–34
Gemini 3.8 FlashGoogleLighter on creditsFast and light on credits.1M tokens16–43 · 21–55 · 29–69
GLM 5.3Z.aiLighter on creditsThe fewest credits per reply of any model here.1M tokens2–5 · 3–7 · 4–9

How to switch models

  1. 1

    Create a free account

    Start with Paige on a real chapter.

  2. 2

    Choose a paid plan

    Other models are part of every paid plan. Paige stays included.

  3. 3

    Pick a model

    Tap "Writing with: Paige" beside the chat box and choose a model. Add credits when you need them: packs from US$10 (€10 in the eurozone) for 1,000 credits.

The model picker: tap “Writing with: Paige” beside the chat box. (Illustration.)

Head-to-head for fiction

Claude Opus 5.5 vs GPT-6.1 Sol

Which suits your book, what each costs in credits, and how to try both on one scene.

Claude Fable 5.1 vs GPT-6 Astra

Which suits your book, what each costs in credits, and how to try both on one scene.

Gemini 4 Argon vs Claude Opus 5.5

Which suits your book, what each costs in credits, and how to try both on one scene.

Kimi K3.1 Pro vs Claude Opus 5.5

Which suits your book, what each costs in credits, and how to try both on one scene.

Frequently asked questions

Can I write fiction with Claude, GPT, Gemini, Grok or Kimi on WriteWithPaige?

Yes. Writers on a paid plan can pick a model from Anthropic, OpenAI, Google, xAI, Moonshot AI and others for any reply in their story. The model reads your chapters and Story Bible and writes into your book. Paige stays the default and is included in every plan; other models use credits.

How do credits work?

Credits come in packs from US$10 (€10 in the eurozone) for 1,000 credits. Each reply uses credits based on how much of your story the model reads and writes, so a short chat reply costs less than a new chapter. Every reply shows what it used.

Do other models use my daily messages?

No. Replies from other models are paid with credits and don't count against Paige's daily allowance.

Will other models write everything Paige writes?

No. Each model follows its maker's content rules and 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.

Which model should I start with?

Start with Paige, who is built for fiction and costs nothing extra. When a scene stalls, try a second voice on it: a "most capable" model for a hard chapter, a "lighter on credits" model for quick drafts and brainstorming.

Can I use other models in Adventures?

Not yet. Other models work in your Story workspace. Adventures always run on Paige.

Keep exploring

AI fiction writer

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.

Start with Paige. Add a second voice when a scene needs one.

Create a free account, write your first chapter with Paige, and try other models on a paid plan.

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