GPT-6.1 Terra vs Claude Fable 5.2
Compare GPT-6.1 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-6.1 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-6.1 Terra
proDescription
OpenAI's fast, efficient mid-size model in the GPT-6.1 family and the upgrade to GPT-5.6 Terra. OpenAI reports gains over GPT-5.6 Terra in coding, visual reasoning, and factual accuracy, and near-Sol results on MMMU-Pro, at half the per-token price of GPT-6.1 Sol. It reads text and images across a very large context, supports web search, and offers reasoning effort from none to max.
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-6.1 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-6.1 Terra
proCoding Above 5.6 Terra
OpenAI reports large gains over GPT-5.6 Terra on software engineering tests, including Terminal-Bench 4.0, which checks how well a model fixes problems from the command line.
Effort None To Max
Reasoning effort runs none, low, medium, high, xhigh, and max, defaulting to medium. Lower levels answer faster, and higher levels spend more time thinking on hard problems.
Room For Whole Projects
A very large context window, with room for a full codebase or a long set of documents in one request. Replies can run up to 128,000 tokens.
Clear, Natural Writing
OpenAI built GPT-6.1 Terra for three things: visual reasoning, precise computer use, and natural writing. That makes it a good fit for everyday drafts, replies, and summaries.
Fewer Factual Errors
Supports web search for current information. OpenAI reports its error rate on a hard factual test fell from 53.6% with GPT-5.6 Terra to 16.7%.
Text And Image Input
OpenAI lists text and image input, with text output. On MMMU-Pro, a visual reasoning test, it nearly matches GPT-6 Astra and GPT-6.1 Sol.
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-6.1 Terra and Claude Fable 5.2 on Aymo AI?
Aymo gives you more than access to GPT-6.1 Terra and Claude Fable 5.2—it provides a complete multi-model AI workspace designed for productivity.
Compare Responses
See how GPT-6.1 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.