CloudFlow uses pay-as-you-go billing. Charges depend on the workflow type (CloudStudio or AIStudio), the execution mode (standard or express), and the resources consumed.
Billing dimensions
What counts as a billable unit depends on the execution mode:
|
Execution mode |
Billing dimensions |
|
Standard |
State transition count |
|
Express |
Requests, execution duration (by memory tier), minimum workflow charge |
CloudStudio workflows
Free tier
|
Item |
Free quota |
|
Standard workflow |
First 5,000 state transitions per month, for 12 months |
|
Express workflow |
No free quota |
Standard mode
|
Billable item |
Unit price (USD) |
|
State transition count |
$0.000025 per state transition |
How state transitions are counted
Each step in a workflow execution counts as one state transition. The total depends on the step type and how many branches or iterations run.
|
Step type |
Example |
State transitions |
|
Parallel step |
3 branches, each with 1 task step |
4 (1 parallel + 3 tasks) |
|
Map step |
1 task step, loop runs 4 times |
5 (1 foreach + 4 tasks) |
|
Choice step |
3 branches, 1 branch executed, each with 1 task step |
2 (1 choice + 1 task) |
Express mode
|
Billable item |
Unit price (USD) |
|
Requests |
$1.013 per million requests |
|
Execution duration |
Starts at $0.00002 per GB-second |
|
Minimum workflow charge |
$0.036 per hour |
Note: The minimum workflow charge applies when the combined cost of execution duration and requests in an hour is less than CNY 0.25. If no executions occur within an hour, no charges are incurred.
Execution duration by memory tier
|
Memory |
Unit price (USD) |
|
64 MB |
Starts at $0.00002 per GB-second |
|
128 MB |
Starts at $0.00004 per GB-second |
|
256 MB |
Starts at $0.00008 per GB-second |
|
Each additional 64 MB |
Starts at $0.00002 per GB-second |
AIStudio workflows
AIStudio workflows follow the same billing structure as CloudStudio but at higher per-unit rates. Neither standard nor express workflows include a free tier.
Free tier
|
Item |
Free quota |
|
Standard workflow |
No free quota |
|
Express workflow |
No free quota |
Standard mode
|
Billable item |
Unit price (USD) |
|
State transition count |
$0.000034 per state transition |
Express mode
|
Billable item |
Unit price (USD) |
|
Requests |
$1.42 per million requests |
|
Execution duration |
Starts at $0.000028 per GB-second |
|
Minimum workflow charge |
$0.036 per hour |
Note: The minimum workflow charge applies when the combined cost of execution duration and requests in an hour is less than CNY 0.25. If no executions occur within an hour, no charges are incurred.
Execution duration by memory tier
|
Memory |
Unit price (USD) |
|
64 MB |
Starts at $0.000028 per GB-second |
|
128 MB |
Starts at $0.000056 per GB-second |
|
256 MB |
Starts at $0.0000112 per GB-second |
|
Each additional 64 MB |
Starts at $0.000028 per GB-second |