what is fable 5
fable 5 is anthropic's newest ai model that is now available to everyone. it is called a mythos class model and it is the most capable model anthropic has ever made generally available. the company says it is safe for general use and works well for codin
what people are building
designers are using fable 5 to create websites that look professional and don't have the typical ai slop look. one designer said the lines between ai generated designs and human designs are blurring fast. developers are building mobile and web apps with just a few prompts. one person built a complete app in o
stripe tested fable 5 on a 50 million line ruby codebase and completed the migration in one day. before fable 5, this would have taken a team two months by hand. that is a huge time savings.
benchmarks and performance
fable 5 scores 86.3 percent on agentic coding tasks which is higher than claude opus 4.8 at 69.2 percent, gpt 5.5 at 58.6 percent, and gemini 3.1 pro at 54.2 percent. it is state of the art on nearly all tested benchmarks. the longer and more comp
user reviews and experiences
most people are impressed. one person said fable 5 is crazy good. another said it's operating in a completely different dimension compared to other models. the visual gap in 3d fluid dynamics and complex physics is insane. however some users have reported issues. one person said it took 7 minutes and was still thinking. another developer had a long sigh when tryin
community thoughts
people inside anthropic say this is a major milestone like previous breakthrough releases. an anthropic employee who was there for every model launch said fable 5 stands out as a step change in how we use models. the community is excited but also testing it critically. some are comparing it to previous mo
where to access it
fable 5 is available today on all paid plans, in claude code, on the claude api, and on all major cloud platforms. it is also available on gspark code agent, gspark claw, blink, venice ai, and gmi cloud. the model is designed for extended autonomous coding and knowledge tasks with built in safety classifiers.
final thoughts
fable 5 represents a big step forward in ai capabilities. it can build apps, write code, do research, and handle complex tasks better than previous models. while there are some performance concerns, the overall sentiment is very positive. developers are already building real products with it and seeing impressive results.dels and finding it superior. others are finding it slow for certain tasks.g to work on fixing his project with fable 5.lex the task, the larger fable 5's lead over other models.nly 2 prompts and it worked better than the original.g, research, knowledge work, and vision tasks.
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