GPT-5.6 Terra vs Claude Fable 5.2
Compare GPT-5.6 Terra and Claude Fable 5.2 side-by-side. See comparisons of price, response speed, accuracy, and file support to choose the best model for your task.
Overview
GPT-5.6 Terra vs Claude Fable 5.2 Overview
Everything you need to know about these AI models, including capabilities, performance, pricing, and technical details.
OpenAI / GPT-5.6 Terra
allDescription
OpenAI's balanced everyday model in the GPT-5.6 family, and its new default GPT for most work. Terra delivers roughly the quality of the previous flagship at about half the cost, with strong coding, agentic work, and design sense. It reads text and images across a very large context, supports live web search, and lets you set reasoning effort per request.
Anthropic / Claude Fable 5.2
maxDescription
Anthropic's most capable model and the upgrade to Fable 5.1. Anthropic reports it is a step above Opus 5.5 in almost every area it tested, with large gains in coding and chart reading, and output up to 30% faster than Fable 5.1. It reads text, images, and files across a very large context, supports web search, and offers effort from Low to Max.
About
About
Capabilities
Capabilities
Comparison
Why Use GPT-5.6 Terra and Claude Fable 5.2?
Aymo gives you more than access to individual models—it provides a complete multi-model AI workspace designed for productivity.
OpenAI / GPT-5.6 Terra
allCoding With Design Sense
OpenAI tuned this generation for front-end taste, producing tasteful, functional interfaces from high-level direction. It can inspect the rendered result and refine it, rather than emitting code and hoping it works.
Reasoning Effort You Set
Reasoning effort runs from none through low, medium, high, and higher settings, so you control how hard the model works per request. OpenAI positions Terra as the balanced baseline for most API work.
Room For Whole Projects
A very large context window, big enough to hold a substantial project in view so the model stops losing track of files across a long build. Prompts above a high threshold are billed at a higher rate.
Professional Knowledge Work
OpenAI positions the family for professional knowledge work, science, and design alongside coding. Terra suits that work at a cost that makes running it at volume practical rather than reserved for the hardest tasks.
Web Search And Recent Knowledge
Supports web search as a tool, and its knowledge is among the most recent in the catalog. Together those cover current questions well, with the search filling anything past the training cutoff.
Text And Image Input
Reads text and images in the same prompt, so you can send screenshots, diagrams, or scanned pages alongside your question. Output is text only. Audio and video are not accepted.
Anthropic / Claude Fable 5.2
maxTop FrontierCode Score
Anthropic reports 49.1% on FrontierCode 2.0 at Xhigh effort, up from 32.4% for Fable 5.1. That is the highest score of any released model Anthropic tested.
Effort Low To Max
Effort runs Low, Medium, High, Xhigh, and Max, with Medium as the default. At Medium, Anthropic reports it finishes hard tasks with fewer tokens than Fable 5.1.
Room For Whole Projects
A very large context window on Aymo, with room for a full codebase or a long document set. Load everything once and work across it in one session.
Expert Technical Work
Anthropic built Fable for its most ambitious, open-ended technical work. It can also act as an advisor to smaller models or hand simpler tasks to them.
Fewer Needless Refusals
Supports web search on Aymo. Anthropic reports about 55% fewer blocked legitimate requests than Fable 5.1, with similar protection against cyber and biology risks.
Text, Image, And Files
Reads text and images, plus files you upload on Aymo. On Chartography, a chart-reading test without tools, Anthropic reports 73.4%, up from 44.8% for Fable 5.1.
Why Aymo
Why chat with GPT-5.6 Terra and Claude Fable 5.2 on Aymo AI?
Aymo gives you more than access to GPT-5.6 Terra and Claude Fable 5.2—it provides a complete multi-model AI workspace designed for productivity.
Compare Responses
See how GPT-5.6 Terra and Claude Fable 5.2 performs alongside Claude, Gemini, Grok, and other leading AI models.
One Workspace
Keep all your AI conversations, files, and prompts in a single organized workspace.
Switch Models Instantly
Move between different AI models without restarting your conversation.
Upload Once
Use the same files across multiple AI models without uploading them again.
Save & Organize
Bookmark important chats, organize projects, and return anytime.
Work Together
Share conversations and collaborate with teammates in one place.