--- title: "Claude Oceanus V1-P (Mythos?- FULLY TESTED): I TESTED IT & IT'S ACTUALLY CRAZY!" url: https://daily.dev/posts/claude-oceanus-v1-p-mythos---fully-tested-i-tested-it-it-s-actually-crazy--nuctfrhih source_url: https://www.youtube.com/watch?v=_D-z201rEoA type: video:youtube source: "AICodeKing" published: 2026-06-08T09:36:49.406Z updated: 2026-06-18T02:15:53.835Z tags: ["ai-assisted-development", "claude", "opencode"] reading_time: 6 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Claude Oceanus V1-P (Mythos?- FULLY TESTED): I TESTED IT & IT'S ACTUALLY CRAZY! **[AICodeKing](https://daily.dev/sources/aicodeking)** · 6 min read · 0 upvotes · 0 comments ## Summary A hands-on benchmark of a leaked AI model called 'Oceanus V1P' (possibly the rumored 'Mythos' model from Anthropic), tested using OpenCode across seven practical coding and reasoning tasks. The model scored 70/70, outperforming Claude Opus 4.8 (61/70), GPT-5.5 (27/70), Gemini Flash (24/70), and others. Tasks ranged from elevator simulations and Three.js 3D models to SVG generation, game logic, combinatorics math, and a local Gemma fine-tuning workflow. The model's origin, stability, and pricing remain unknown as it only appears on some third-party API sites. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Anthropic’s New Claude Opus 4.5 Reclaims the Coding Crown](https://daily.dev/posts/anthropic-s-new-claude-opus-4-5-reclaims-the-coding-crown-swsygmrln) · The New Stack · 1 upvotes · 0 comments --- Tags: [#ai-assisted-development](https://daily.dev/tags/ai-assisted-development), [#claude](https://daily.dev/tags/claude), [#opencode](https://daily.dev/tags/opencode) [View this post on daily.dev](https://daily.dev/posts/claude-oceanus-v1-p-mythos---fully-tested-i-tested-it-it-s-actually-crazy--nuctfrhih)