Kay 1.5 is here

27% smarter. 66% cheaper. On average, compared with Kay 1.4.

Kay 1.5 brings a significant intelligence upgrade to Kay, Kay Nano, Kay Pro, and Kay Max, alongside lower prices for all four agents.

#A step up across the board

Browser and computer use have improved significantly across every tier. You should feel the jump in intelligence in everyday work, with agents better equipped to take on longer, more complex tasks.

#How to choose the right Kay tier

Our recommendations remain the same. For the best balance of capability, speed, and credit usage:

• Kay: The recommended default for most tasks.
• Kay Nano: Ideal for time-sensitive work where speed and efficient credit usage matter most.
• Kay Pro: The intelligence sweet spot: near state-of-the-art capability at a significantly lower price than Kay Max. Step up to Pro when Kay is still struggling after a few rounds of work and refinement.
• Kay Max: The absolute highest level of agent intelligence on the market, according to all leading benchmarks. Reserved for the most demanding work, when the highest level of capability justifies higher credit usage, or when another tier cannot make progress.

The same four choices. More intelligence. Lower prices.