docs(agents): the free minutes become a $5 trial balance that covers every agent charge

agents/pricing.mdx

@@ -1,17 +1,17 @@
 ---
 title: "Pricing"
-description: "Rates for conversations, LLM usage, telephony, and transfers, plus free minutes and billing"
+description: "Rates for conversations, LLM usage, telephony, and transfers, plus the trial balance and billing"
 icon: "credit-card"
 ---
 
-Agents cost **$0.06 per minute** of conversation, with a small number of add-ons for telephony and token-billed models. Every account starts with free minutes, and everything after that is charged against your API credit.
+Agents cost **$0.06 per minute** of conversation, with a small number of add-ons for telephony and token-billed models. Every account starts with a $5 trial balance, and everything after that is charged against your API credit.
 
 ## Rates
 
 | Item                 | Price                                                   | Notes                                                                                                                                                      |
 | -------------------- | ------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- |
 | Agent conversation   | $0.06 per minute                                        | All-inclusive: STT, TTS, the basic LLMs, knowledge base retrieval, and tool calls                                                                          |
 | LLM usage            | Covered for the basic LLMs, by token usage for the rest | The other LLMs are billed on the tokens each request uses. See [LLM models](#llm-models). Custom LLM endpoints carry no LLM charge                         |
 | Phone call surcharge | +$0.01 per minute                                       | Added to the conversation rate on phone calls. Some outbound destinations carry a higher rate instead. See [Outbound destinations](#outbound-destinations) |
 | Phone number rental  | $1.20 per month                                         | Charged in daily slices while you hold the number, and stops when you release it                                                                           |
 | Cold transfer        | $0.015 per minute                                       | Charged for the time after the agent hands the call to a person. The conversation rate stops at that point                                                 |
@@ -51,14 +51,14 @@
 
 The countries purchased numbers can call are listed under [allowed destinations](/agents/telephony/outbound-calls#allowed-destinations).
 
-## Free minutes
+## Trial balance
 
-Every account starts with **60 free minutes** of agent conversation. They apply to real usage:
+Every account starts with a one-time **$5 trial balance**, about 60 minutes of conversation at the base rate. It pays for real usage at the normal rates:
 
-- Web sessions, phone calls, and transferred call time all draw on the same pool, second for second.
-- Number rental draws on it too, at one minute per day of rental, so you can get a number and test inbound calls without a balance.
-- LLM tokens never draw on the pool. A session on a token-billed LLM needs a positive API credit balance to start. Its conversation minutes still come out of the free pool, and only the tokens are charged.
-- [Preview calls](/agents/test/preview-calls) in the Builder are free on every LLM, including token-billed ones, and never count against the pool.
+- Every charge draws on it first: web sessions, phone calls and their surcharges, transferred call time, number rental, and LLM tokens on token-billed models. Only what the trial balance does not cover is charged to your API credit.
+- A session can start on any model, including token-billed ones, as long as the trial balance or your API credit is above zero.
+- [Preview calls](/agents/test/preview-calls) in the Builder are free on every LLM, including token-billed ones, and never draw on the trial balance.
+- The [Agents billing page](https://fish.audio/app/agents/billing) shows how much of the trial balance is left, and the Agents home page shows it as a usage meter.
 
 ## Billing
 
@@ -74,13 +74,13 @@
 | Inbound phone call, 6 min, basic LLM                                               | Conversation 6 min × $0.06 = $0.36<br />Phone surcharge 6 min × $0.01 = $0.06                                            | $0.42             |
 | Outbound call, 10 min, Japanese mobile number                                      | Conversation 10 min × $0.06 = $0.60<br />Japan mobile surcharge 10 min × $0.22 = $2.20                                   | $2.80             |
 | Inbound call, 3 min with the agent, then 5 min with a person after a warm transfer | Conversation 3 min × $0.06 = $0.18<br />Phone surcharge 3 min × $0.01 = $0.03<br />Warm transfer 5 min × $0.025 = $0.125 | $0.335            |
 | Web conversation, 5 min, token-billed LLM                                          | Conversation 5 min × $0.06 = $0.30<br />LLM usage: the session's tokens at the LLM's rates                               | $0.30 + LLM usage |
 
 ## Going further
 
 <CardGroup cols={2}>
   <Card title="Quickstart" icon="rocket" href="/agents/quickstart">
-    Create an agent and talk to it within the free minutes.
+    Create an agent and talk to it on the trial balance.
   </Card>
   <Card
     title="Phone numbers"

agents/quickstart.mdx

@@ -10,7 +10,7 @@
 
 - A Fish Audio account. Agents is in public beta and open to every account, no application needed.
 - For the API path: a Fish Audio API key. Create one under [API keys](https://fish.audio/app/api-keys/) in the console
-- Every account starts with 60 free minutes of agent conversation, shared across web, phone, and preview calls that leave the Builder. After that, sessions are billed per second against your API credit.
+- Every account starts with a $5 trial balance, about 60 minutes of agent conversation. It pays for web, phone, and API sessions at the normal rates, including token-billed LLMs. After that, usage is billed per second against your API credit.
 
 <Tabs>
   <Tab title="Dashboard">