Anthropic’s Fable 5 can make weirdly fun video games with the click of a button

TechCrunch AI Models

Summary

Anthropic released Claude Fable 5, the first public version of its Mythos model, capable of generating video games and tools from a single prompt, outperforming other public models by a considerable margin.

Anthropic's Claude Fable 5 is going to be a big hit with the web's vibe coders.
Original Article
View Cached Full Text

Cached at: 06/10/26, 12:15 AM

# Anthropic's Fable 5 can make weirdly fun video games with the click of a button | TechCrunch Source: [https://techcrunch.com/2026/06/09/anthropics-fable-5-can-make-weirdly-fun-video-games-with-the-click-of-a-button/](https://techcrunch.com/2026/06/09/anthropics-fable-5-can-make-weirdly-fun-video-games-with-the-click-of-a-button/) Anthropic has[released Claude Fable 5](https://techcrunch.com/2026/06/09/anthropic-released-claude-fable-5-its-most-powerful-model-publicly-days-after-warning-ai-is-getting-too-dangerous/), the first publicly available version of its[closely watched](https://techcrunch.com/2026/04/09/is-anthropic-limiting-the-release-of-mythos-to-protect-the-internet-or-anthropic/)Mythos model\. What can Fable actually do? All kinds of things, it turns out\. Ethan Mollick, a notable AI researcher and University of Pennsylvania scholar,[has been playing around](https://www.oneusefulthing.org/p/what-it-feels-like-to-work-with-mythos)with the model and seems to be having a lot of fun\. In his testing, Fable consistently “outperformed basically every other public model I have used by a considerable margin,” Mollick[wrote Tuesday](https://www.oneusefulthing.org/p/what-it-feels-like-to-work-with-mythos)on his Substack\. He added that it was “capable across many problems and produced some startling results — it would work up to a dozen hours executing on multi\-page specifications\.” Perhaps most strikingly, Mollick used Fable to create a variety of video games — all of which were generated via “one initial prompt” in Claude Code, the researcher says\. Among these,[Snake](https://snake-stable-build.netlify.app/)is exactly what it sounds like\. You’re a Pac\-Man\-like snake and you roam around eating apples\. The snake never stops moving, and if you run off the screen, you die\. It’s very 1980s arcade but, like many of those old games, it’s weirdly addicting\. I played it longer than I’d like to admit before remembering I am a gainfully employed writer and not, in fact, a serpent who likes fruit\. Then there was[Strata](https://strata-descent.netlify.app/), where you’re roaming around in a seemingly endless network of subterranean tunnels and the goal is just to light as many lanterns as possible\. The graphics look like a degraded version of Myst — they aren’t great — but the fact that the game exists at all, generated from a single prompt, is impressive\. Mollick even managed to create[Duino](https://duino-elegies.netlify.app/), a game based on the Duino Elegies, the celebrated cycle of poems by poet Rainer Maria Rilke\. I like the animation here best — the player is a lone figure in a nocturnal landscape — although there isn’t much to the gameplay other than walking around while Rilke passages materialize on the screen\. Aside from the variety of instant games Mollick produced, he also used Fable to create an[isochronic map](https://isochronic-passage-chart.netlify.app/#nyc)— a visualization showing how long it takes to travel between any two locations\. The accuracy and detail is arresting\. The implications are pretty clear\. Software projects that once required entire teams — games, mapping tools, highly complex specifications — are now being spun up from a single prompt\. It’s reason for vibe coders of the world to rejoice\. As for founders and operators watching AI capability curves, it’s a useful data point about how quickly the floor is rising\. *When you purchase through links in our articles,[we may earn a small commission](https://techcrunch.com/techcrunch-affiliate-monetization-standards/)\. This doesn’t affect our editorial independence\.* Lucas is a senior writer at TechCrunch, where he covers artificial intelligence, consumer tech, and startups\. He previously covered AI and cybersecurity at Gizmodo\. You can contact Lucas by emailing lucas\.ropek@techcrunch\.com\. [View Bio](https://techcrunch.com/author/lucas-ropek/)

Similar Articles

Anthropic’s Claude Fable 5 is a version of Mythos the public can access today

TechCrunch AI

Anthropic launched Claude Fable 5, a publicly accessible version of its powerful Mythos model, with safety guardrails that block responses in high-risk areas and fall back to a weaker model. The release follows Anthropic's warning about AI becoming too dangerous and its push for coordinated safety measures.

Anthropic releases its first Mythos-class model Claude Fable 

The Verge

Anthropic announced Claude Fable 5, its most powerful widely available AI model, part of the Mythos class previously considered too dangerous for public release. The model features new safeguards that fall back to Opus 4.8 in high-risk areas.

Initial impressions of Claude Fable 5

Simon Willison's Blog

Claude Fable 5 and Claude Mythos 5 have been released by Anthropic, offering a 1 million token context window and doubled pricing compared to Opus 4.8. Fable 5 includes strict safety guardrails, while Mythos 5 lacks them. Initial impressions describe it as a powerful and capable model.

Ethan Mollick: What it feels like to work with Mythos

Reddit r/singularity

Ethan Mollick reviews early access to the Mythos-class AI model Claude 5 Fable, describing it as a significant leap over previous models with capabilities to generate complex games, academic papers, and maps from single prompts, suggesting a shift in human-AI interaction.