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Best AI model for Fiction Collaborator (2026)
Co-author drafting partner for fiction projects. Ranked from 343 live models on the OpenRouter catalog, weighted for reasoning quality, context window.
| # | Model | Score | In / 1M | Out / 1M | Context | |
|---|---|---|---|---|---|---|
| 1 | Qwen: Qwen3.6 Plusqwen/qwen3.6-plus | 136 | $0.33 | $1.95 | 1,000,000 | Try → |
| 2 | xAI: Grok 4.20x-ai/grok-4.20 | 136 | $2.00 | $6.00 | 2,000,000 | Try → |
| 3 | OpenAI: GPT-5.4 Nanoopenai/gpt-5.4-nano | 136 | $0.20 | $1.25 | 400,000 | Try → |
| 4 | OpenAI: GPT-5.4 Miniopenai/gpt-5.4-mini | 136 | $0.75 | $4.50 | 400,000 | Try → |
| 5 | OpenAI: GPT-5.4openai/gpt-5.4 | 136 | $2.50 | $15.00 | 1,050,000 | Try → |
| 6 | Google: Gemini 3.1 Flash Lite Previewgoogle/gemini-3.1-flash-lite-preview | 136 | $0.25 | $1.50 | 1,048,576 | Try → |
| 7 | Qwen: Qwen3.5-Flashqwen/qwen3.5-flash-02-23 | 136 | $0.07 | $0.26 | 1,000,000 | Try → |
| 8 | Google: Gemini 3.1 Pro Preview Custom Toolsgoogle/gemini-3.1-pro-preview-customtools | 136 | $2.00 | $12.00 | 1,048,576 | Try → |
| 9 | OpenAI: GPT-5.3-Codexopenai/gpt-5.3-codex | 136 | $1.75 | $14.00 | 400,000 | Try → |
| 10 | Google: Gemini 3.1 Pro Previewgoogle/gemini-3.1-pro-preview | 136 | $2.00 | $12.00 | 1,048,576 | Try → |
| 11 | Qwen: Qwen3.5 Plus 2026-02-15qwen/qwen3.5-plus-02-15 | 136 | $0.26 | $1.56 | 1,000,000 | Try → |
| 12 | Google: Gemini 3 Flash Previewgoogle/gemini-3-flash-preview | 136 | $0.50 | $3.00 | 1,048,576 | Try → |
| 13 | OpenAI: GPT-5.2openai/gpt-5.2 | 136 | $1.75 | $14.00 | 400,000 | Try → |
| 14 | Amazon: Nova 2 Liteamazon/nova-2-lite-v1 | 136 | $0.30 | $2.50 | 1,000,000 | Try → |
| 15 | xAI: Grok 4.1 Fastx-ai/grok-4.1-fast | 136 | $0.20 | $0.50 | 2,000,000 | Try → |
How we ranked these
For Fiction Collaborator, we weight models on reasoning quality, context window. Higher means better. Scores combine OpenRouter's model metadata (context length, modality support, tool calling, structured output, reasoning capability) with public pricing. See full methodology →
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