So I put together a quick comparison of the last couple iterations of Opus, Fable and now Kimi.
Kimi is cheapest by 5x but also slowest by 2x
Edit: Actually, looking at the K2.6 response, that's borderline failing too, it's using HTML+CSS+SVG, not just SVG, again failing to follow the prompt properly.
By the way, that website seems like a black hole for information, it says "Expires in 6 days" in the top right which seems really weird for a page hosting couple of KB of data at most.
Making the content auto expire after a short period of time greatly decreases the attractiveness of the site to lots of SEO spammers and other types of abuse, and if someone were to get something malicious or vile posted it will clean up after itself without me having to wade into things.