Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual...
With CoreAI, you can start chatting with Anthropic: Claude Fable 5.1 (batch) instantly — no separate subscription needed. CoreAI lets you chat with Anthropic: Claude Fable 5.1 (batch) alongside 300+ other AI models from Anthropic and other providers like OpenAI, Anthropic, Google, Meta, and more.
Anthropic: Claude Fable 5.1 (batch) holds the #127 spot for context size out of 451 chat models in the CoreAI catalog — 1M tokens, roughly 750,000 words or 1,500 pages of text in a single conversation. On price, it is the #32 cheapest of 67 premium-tier models by input cost. It joined the catalog on 2026-09-01. It supports step-by-step reasoning (thinking mode) and accepts image input.
Every model in this table is available on CoreAI — open the web app and run the same prompt through Anthropic: Claude Fable 5.1 (batch) and Anthropic: Claude Opus 5 side by side to judge with your own eyes.
A typical question (about 1,000 tokens in, 500 out) runs $0.0175 on Anthropic: Claude Fable 5.1 (batch)'s raw per-token rates; a heavy session with a 50K-token document costs about $0.375. On CoreAI you don't juggle these numbers — one subscription covers Anthropic: Claude Fable 5.1 (batch) and 300+ other models under a plan usage limit, with no API keys. See plans.
Anthropic: Claude Fable 5.1 (batch) handles 1M tokens of context — roughly 750,000 words, or about 1,500 pages of text in one conversation.
Anthropic: Claude Fable 5.1 (batch)'s underlying rates are $5 per 1M input tokens and $25 per 1M output tokens. On CoreAI it is included in one subscription alongside 300+ models, so there is no per-token billing to manage.
Yes — Anthropic: Claude Fable 5.1 (batch) accepts image input, so you can attach screenshots, photos or diagrams and ask questions about them.
Yes. Anthropic: Claude Fable 5.1 (batch) can work through problems step by step before answering; on CoreAI you can toggle thinking mode per message.
Open the CoreAI web app or the iOS/Android app, pick Anthropic: Claude Fable 5.1 (batch) in the model selector, and chat — no API key, no per-token billing. One subscription covers Anthropic: Claude Fable 5.1 (batch) and 300+ other models.
The closest alternatives on CoreAI are Anthropic: Claude Opus 5, Qwen: Qwen3.8 Max Prime, Z.ai: GLM Flash Latest — similar tier and capability. The fastest way to choose is running one prompt through them side by side in CoreAI's Compare view.
Chat with Anthropic: Claude Fable 5.1 (batch) and 300+ other AI models — all in one app.