Claude Capybara
Artificial Intelligence models, advanced
Claude Capybara launched on April 8, 2026.
What it does
Claude Capybara (codename Mythos) is Anthropic's next-gen AI model, a new tier above Opus. Dramatically better at coding, reasoning & cybersecurity. Get day-one access via managed hosting.
Anthropic's most powerful AI model ever built. A new tier above Opus with a step change in coding, reasoning, and cybersecurity capabilities. Capybara introduces a fourth tier to Claude's lineup — larger, more intelligent, and more capable than Opus, which was previously Anthropic's most powerful offering. Based on Anthropic's leaked internal benchmarks, Capybara dramatically outperforms Claude Opus 4.6 across every major category. "Compared to our previous best model, Claude Opus 4.6, Capybara gets dramatically higher scores on tests of software coding, academic reasoning, and cybersecurity, among others." Capybara scores dramatically higher than Opus 4.6 on coding benchmarks. Opus 4.6…from capybara.com
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Claude Code and Claude 3.7 Sonnet 2025 · anthropic.com · ▲875Claude Opus 4.7 is Anthropic's most capable generally available model, released April 16, 2026. It outperforms Opus 4.6, GPT-5.4, and Gemini 3.1 Pro on key benchmarks including agentic coding, multidisciplinary reasoning, scaled tool use, and agentic computer use. It is benchmarked below Claude Mythos Preview — which remains restricted to Project Glasswing partners. https://vucense.com/ai-intelligence/ai-tools/claude-opus-4-7...
I used Claude Mythos to build my startup in 1 dayJun 2026 · brandlm.ai · ▲10This sounds clickbait, but it’s true: I used Claude Mythos to build the full site in 1 day. Then Anthropic removed the model, so I had to go back to Opus.
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