Update README.md

README.md

@@ -171,7 +171,7 @@ We report results derived from the Agentless scaffold. Departing from the origin
 "sphinx-doc__sphinx-8475"
 
 ### TAU-bench methodology 
-We evaluate TAU-Bench with the average passrate of 5 samples for each query, with GPT-4.1 as user model and without any custom tools. The maximum number of interaction steps is 30. 
+We evaluate TAU-Bench with the average passrate of 5 samples for each query, with GPT-4.1 as user model and without any custom tools. The maximum number of interaction steps is 40. 
 We prepend a general principle to the policy prompt.
 #### General
 - In each round, you need to carefully examine the tools provided to you to determine if any can be used.