Aethyro gives developers instant access to Claude Opus 5 for the tasks that matter: code review, debugging, refactoring, documentation, and architectural decisions.
Paste a diff or a function and get a thorough review — bugs, edge cases, style issues, and performance concerns in plain English.
Share an error trace and the surrounding code. Claude reasons through the root cause and proposes the fix, not just the symptom.
Describe your system design and ask for trade-offs. Claude Opus 5 handles systems-level reasoning better than any other model.
Turn a messy function into clear docstrings, a README, or an RFC. Paste the code and get the docs — no manual writing needed.
Ask Claude to rewrite legacy code with modern patterns, improve readability, or migrate from one framework to another.
Ask deep questions about an API or library. Claude's 200k context window fits entire documentation files in a single conversation.
Claude Opus 5 consistently outperforms other frontier models on software engineering benchmarks (SWE-bench, HumanEval, and MATH). Its large 200k context window is particularly valuable for developers who need to paste entire files, repositories, or documentation without truncation.
Claude also excels at multi-step reasoning — which matters when you need it to understand an entire codebase, trace a bug through multiple layers, or reason about complex trade-offs rather than just recall syntax.
Aethyro handles the Anthropic API connection, token counting, and billing infrastructure. You sign up, get 200 free credits, and start using Claude Opus 5 in under a minute. When you need more, buy a credit pack starting at $4 — credits never expire.
Create a free account, get 200 credits, and paste your first code review request in under a minute. No credit card required.
Start free →