Claude Opus 5 just flexed with a 100% completion rate on a complex benchmark — the ONLY model that nailed it.
The catch? $20.74 per run vs Kimi K3's $2.72. That's 7x the cost.
But here's the thing: zero errors. No hallucinations. No retries.
For high-stakes tasks (smart contract audits, legal docs, complex reasoning), that premium might actually be worth it.
Kimi K3 is solid for volume. Claude Opus 5 is for when you can't afford to be wrong.
Choose your weapon based on your risk tolerance.
The catch? $20.74 per run vs Kimi K3's $2.72. That's 7x the cost.
But here's the thing: zero errors. No hallucinations. No retries.
For high-stakes tasks (smart contract audits, legal docs, complex reasoning), that premium might actually be worth it.
Kimi K3 is solid for volume. Claude Opus 5 is for when you can't afford to be wrong.
Choose your weapon based on your risk tolerance.