[dd-CyrilleChev]

What does this PR do? What is the motivation?

Merge readiness

• Ready for merge

AI assistance

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Additional notes

[maycmlee]

Left some feedback. Some of the links are broken in the preview. I'm not sure why. Let's see if fixing the code block helps.

[maycmlee]

This code block is never closed, so the rest of the page (from ## Cost metric types on) renders inside it.

Suggested change

	-d '{"data": {"type": "cost_metadata", "id": "'"${file_id}"'", "attributes": {"ai_provider": true}}}'
	-d '{"data": {"type": "cost_metadata", "id": "'"${file_id}"'", "attributes": {"ai_provider": true}}}'
	```

[maycmlee]

To match the term used in the body ("AI provider file"). If you change this, also update the anchor on line 329.

Suggested change

	### Mark a file as AI provider costs
	### Mark a file as an AI provider file

[maycmlee]

Suggested change

	If a file contains the costs of an AI provider, such as a model API or an AI platform that Datadog doesn't integrate with natively, you can mark the file as an AI provider file. The costs of the file then appear on the [**AI Costs** page][11], next to your other AI costs.
	If a file contains costs from an AI provider that Datadog doesn't integrate with natively, such as a model API or an AI platform, mark it as an AI provider file. Its costs then appear on the [**AI Costs** page][11] alongside your other AI costs.

[maycmlee]

Suggested change

	Line items from an AI provider file get two additional tags:
	Datadog adds the following tags to line items from an AI provider file:

[maycmlee]

Could you add an example of the resulting value? On the AI Costs page, ai_vendor values are normalized (for example, anthropic_enterprise), so it would help to show what a given ProviderName turns into. For example, Acme AI → acme_ai.

[maycmlee]

Suggested change

	You can mark a file as an AI provider file when you upload it, or change it later. When you change it, Datadog recomputes the costs for the months that the file covers.
	You can mark a file as an AI provider file when you upload it, or change the setting later. When you change the setting, Datadog recomputes costs for the months that the file covers.

[maycmlee]

These are two alternatives, not steps in a sequence, so a bulleted list fits better.

Suggested change

	1. To mark a new file, navigate to [**Cloud Cost > Settings > Custom Costs**][3], click the {{< ui >}}\+ Upload Costs{{< /ui >}} button, and turn on {{< ui >}}AI provider{{< /ui >}} before uploading the file.
	1. To change an existing file, click the file in the [**Custom Costs**][3] list and turn {{< ui >}}AI provider{{< /ui >}} on or off.
	- To mark a new file: Navigate to [**Cloud Cost > Settings > Custom Costs**][3] and click {{< ui >}}\+ Upload Costs{{< /ui >}}. Turn on {{< ui >}}AI provider{{< /ui >}} before you upload the file.
	- To change an existing file: In the [**Custom Costs**][3] list, click the file and turn {{< ui >}}AI provider{{< /ui >}} on or off.

[maycmlee]

Suggested change

	To change an existing file, use the [`PATCH api/v2/cost/custom_costs/{file_id}`][12] endpoint.
	To change the AI provider setting of an existing file, use the [`PATCH api/v2/cost/custom_costs/{file_id}`][12] endpoint. Set `ai_provider` to `false` to unmark the file.

[maycmlee]

Suggested change

	Costs from [AI provider files](#mark-a-file-as-ai-provider-costs) also appear on the [**AI Costs** page][11].
	Costs from AI provider files also appear on the [**AI Costs** page][11]. See the [Mark a file as an AI provider file](#mark-a-file-as-an-ai-provider-file) section.