Language Models in Copy.ai
The large language models behind writing tools and chat assistants. Every listing below works with Copy.ai.
Updated September 2026 · 3 listings
How to pick a model in Copy.ai
Pick the model from the app's model selector (often under the prompt box or in settings). Credit costs usually differ per model, and some apps only offer the newest models on paid plans.
Claude Fable 5.1 🧠 ModelFreemium
Anthropic's Claude models (Fable 5.1, Opus 5.5, Sonnet 5, Haiku 4.5) with 1M-token context
9.0
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GPT-6 Astra 🧠 ModelFreemium
OpenAI's GPT-6 family (Astra, Sol, Luna) behind ChatGPT and the OpenAI API
9.0
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Gemini 3.1 Pro 🧠 ModelFreemium
Google's Gemini models (3.1 Pro, 3.8 Flash) in the Gemini app, NotebookLM and the Gemini API
8.7
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