LEAKED Claude Mythos (Capybara): More POWERFUL Than Opus 4.6

Anthropic's leaked next model, called Mythos internally and codenamed Capybara, reportedly sits above Opus 4.6 and targets cybersecurity workloads.

## What got leaked The details surfaced through accidental documentation referenced by Fortune and other outlets. Anthropic didn't deny it — the company confirmed Mythos is real and called it a step change. No release date or benchmarks are public yet, and Anthropic attributed the leak to human error during an article draft.

## Where it sits in the lineup Current Anthropic tiers run Opus → Sonnet → Haiku. Mythos goes above all of them, so the hierarchy becomes Mythos → Opus → Sonnet → Haiku. Early descriptions point to a focus on cybersecurity, building on the recent release of Anthropic's cybersecurity coding tools. The pitch is that AI-generated code is easy but not simple — fast to write, painful to secure — and Mythos is meant to close that gap for production engineering teams.

## Pricing shock The leak includes a new pricing tier. Current Opus Max is around $200/month; Capybara is reportedly $300/month. The creators joked about a Do you want your software to be hacked? If not, pay our $600 trajectory, with enterprise plans rumored near $60,000/year. Expect API pricing to move in the same direction.

## Competitive read The hosts argue Anthropic is winning because Claude Code absorbs patterns from top engineers — they cite Meta staff engineer John Kim as a public Claude Code user. Gemini's response is Gemini 3.1 Flash, focused on lower latency and voice rather than raw quality, aimed at engineers who won't pay Opus prices. OpenAI was called out by Theo (creator of Theo - t3.gg) for PR around GPT 5.4 Pro's front-end performance; the hosts say internal testing shows it's nowhere near Opus levels.

## What to watch No official date. Speculation centers on an Easter release window. If Mythos is real and priced at $300, expect Sonnet and Haiku to absorb the mid-tier rather than drop in price.