[FEATURE]: Add support for Anthropic models in Azure AI Foundry

Feature hasn't been suggested before.

I have verified this feature I'm about to request hasn't been suggested before.

Describe the enhancement you want to request

Anthropic models are now available in Azure AI Foundry. Reference: https://code.claude.com/docs/en/azure-ai-foundry

Yep we should do that, basically just means updating: https://github.com/sst/models.dev

Looking into this now - added support in anomalyco/models.dev#405 but unable to use the claude models yet. Wondering if we should wait for ai-sdk/azure support for @anthropic-ai/foundry-sdk or just add a switch for the time being.

u can override the npm package per model if u need to:

[provider]
npm = “…”

u can override the npm package per model if u need to:

[provider] npm = “…”

Thanks - fixed in anomalyco/models.dev#409

is this available with latest opencode version 1.0.80

@krishna1s

@krishna1s should be you just need to restart opencode a couple of times to refresh ur cache

@rekram1-node

@rekram1-node I can see now azure/claude-sonnet-4-5, is there any way to clean the cache. Also would opencode auth login with azure, going to support foundry key or we need to set env as suggested here

is there any way to clean the cache

rm ~/.cache/opencode/models.json

Uh idk I didn't set it up but i can take a look when I get a chance

I tried configuring anthropic env variable but it doesn't seems to be working

@krishna1s

@krishna1s this works, just set the envs to your foundry creds (base url: https://{resource-name}.services.ai.azure.com/anthropic/v1)

{
  "provider": {
    "azure": {
      "models": {
        "claude-haiku-4-5": {
          "id": "claude-haiku-4-5",
          "provider": {
            "npm": "@ai-sdk/anthropic",
            "options": {
              "apiKey": "{env:ANTHROPIC_FOUNDRY_API_KEY}",
              "baseURL": "{env:ANTHROPIC_FOUNDRY_BASE_URL}"
            }
          }
        }
      }
    }
  }
}

This is very important :)

@krishna1s this works, just set the envs to your foundry creds (base url: https://{resource-name}.services.ai.azure.com/anthropic/v1)

{
"provider": {
"azure": {
"models": {
"claude-haiku-4-5": {
"id": "claude-haiku-4-5",
"provider": {
"npm": "@ai-sdk/anthropic",
"options": {
"apiKey": "{env:ANTHROPIC_FOUNDRY_API_KEY}",
"baseURL": "{env:ANTHROPIC_FOUNDRY_BASE_URL}"
}
}
}
}
}
}
}

Didnt work for me.

`
INFO 2025-11-21T14:49:36 +0ms service=session.prompt sessionID=ses_5591ba16affeJMoRrZpI0kg4cr cancel
INFO 2025-11-21T14:49:36 +1ms service=bus type=session.status publishing
INFO 2025-11-21T14:49:36 +0ms service=bus type=session.idle publishing
68 | autoload: false,
69 | async getModel(sdk: any, modelID: string, options?: Record<string, any>) {
70 | if (options?.["useCompletionUrls"]) {
71 | return sdk.chat(modelID)
72 | } else {
73 | return sdk.responses(modelID)
^
TypeError: sdk.responses is not a function. (In 'sdk.responses(modelID)', 'sdk.responses' is undefined)
at (src/provider/provider.ts:73:24)
at getModel (src/provider/provider.ts:69:34)
at getModel (src/provider/provider.ts:584:26)

INFO 2025-11-21T14:49:36 +0ms service=provider status=completed duration=43 providerID=azure getSDK
ERROR 2025-11-21T14:49:36 +1ms service=acp-command promise={} reason=sdk.responses is not a function. (In 'sdk.responses(modelID)', 'sdk.responses' is undefined) Unhandled rejection
ERROR 2025-11-21T14:49:36 +0ms service=default e=sdk.responses is not a function. (In 'sdk.responses(modelID)', 'sdk.responses' is undefined) rejection
INFO 2025-11-21T14:49:36 +3ms service=default directory=/home/edisonpaul4 disposing instance
INFO 2025-11-21T14:49:36 +0ms service=state key=/home/edisonpaul4 waiting for state disposal to complete
INFO 2025-11-21T14:49:36 +1ms service=state key=/home/edisonpaul4 state disposal completed
`

Does it work irrespective of foundry deployment name ?

Yes, it works regardless of the Foundry deployment name.

The resource URL is configured through an environment variable like ANTHROPIC_FOUNDRY_BASE_URL, where you set the full URL of your resource:

https://[RESOURCE_NAME].services.ai.azure.com/anthropic/v1

So the deployment name itself doesn't matter what matters is that the base URL points to your specific Azure AI Foundry resource.

do we need to update models.dev was it incorrect?

The resource name can also be provided in opencode.json. The API-Key can be set in auth.json as well. That's my current setup. Thanks to the comment before.

  "provider": {
    "azure-anthropic": {
      "name": "Azure AI Foundry (Anthropic)",
      "npm": "@ai-sdk/anthropic",
      "api": "https://<RSN>.ai.azure.com/anthropic/v1",
      "models": {
        "claude-opus-4-5": {
          "id": "claude-opus-4-5",
          "name": "Claude Opus 4.5",
          "tool_call": true,
          "attachment": true,
          "reasoning": true,
          "temperature": true
        },
        "claude-sonnet-4-5": {
          "id": "claude-sonnet-4-5",
          "name": "Claude Sonnet 4.5",
          "tool_call": true,
          "attachment": true,
          "reasoning": true,
          "temperature": true
        }
      }

auth.json:

{
  "azure-anthropic": {
    "type": "api",
    "key": "xyz"
  }
}

The resource name can also be provided in opencode.json. The API-Key can be set in auth.json as well. That's my current setup. Thanks to the comment before.

"provider": {
"azure-anthropic": {
"name": "Azure AI Foundry (Anthropic)",
"npm": "@ai-sdk/anthropic",
"api": "https://.ai.azure.com/anthropic/v1",
"models": {
"claude-opus-4-5": {
"id": "claude-opus-4-5",
"name": "Claude Opus 4.5",
"tool_call": true,
"attachment": true,
"reasoning": true,
"temperature": true
},
"claude-sonnet-4-5": {
"id": "claude-sonnet-4-5",
"name": "Claude Sonnet 4.5",
"tool_call": true,
"attachment": true,
"reasoning": true,
"temperature": true
}
}

auth.json:

{
"azure-anthropic": {
"type": "api",
"key": "xyz"
}
}

This works great in the Terminal but not on the Web UI for some reason. Has anybody found a workaround for that?

I'm having the issue with OpenCode 1.1.16 , is that opencode need to dump version of dependency, or this need to be configured manually?

The resource name can also be provided in opencode.json. The API-Key can be set in auth.json as well. That's my current setup. Thanks to the comment before.

"provider": {
"azure-anthropic": {
"name": "Azure AI Foundry (Anthropic)",
"npm": "@ai-sdk/anthropic",
"api": "https://.ai.azure.com/anthropic/v1",
"models": {
"claude-opus-4-5": {
"id": "claude-opus-4-5",
"name": "Claude Opus 4.5",
"tool_call": true,
"attachment": true,
"reasoning": true,
"temperature": true
},
"claude-sonnet-4-5": {
"id": "claude-sonnet-4-5",
"name": "Claude Sonnet 4.5",
"tool_call": true,
"attachment": true,
"reasoning": true,
"temperature": true
}
}
auth.json:

{
"azure-anthropic": {
"type": "api",
"key": "xyz"
}
}

This worked for me on 1.1.45! You don't have to add the api key in auth.json, it will ask the first time inside OpenCode and if you paste it there, it will add it for you. If you do want to add it manually it's in ~/.local/share/opencode/auth.json

Just fyi, still having the same issue under the latest version. Bypassing for now with custom provider but not all features are working great (variants for example or pricing)

The resource name can also be provided in opencode.json. The API-Key can be set in auth.json as well. That's my current setup. Thanks to the comment before.
"provider": {
"azure-anthropic": {
"name": "Azure AI Foundry (Anthropic)",
"npm": "@ai-sdk/anthropic",
"api": "https://.ai.azure.com/anthropic/v1",
"models": {
"claude-opus-4-5": {
"id": "claude-opus-4-5",
"name": "Claude Opus 4.5",
"tool_call": true,
"attachment": true,
"reasoning": true,
"temperature": true
},
"claude-sonnet-4-5": {
"id": "claude-sonnet-4-5",
"name": "Claude Sonnet 4.5",
"tool_call": true,
"attachment": true,
"reasoning": true,
"temperature": true
}
}
auth.json:
{
"azure-anthropic": {
"type": "api",
"key": "xyz"
}
}

This worked for me on 1.1.45! You don't have to add the api key in auth.json, it will ask the first time inside OpenCode and if you paste it there, it will add it for you. If you do want to add it manually it's in ~/.local/share/opencode/auth.json

For me it is working on 1.2.17 as well. But I needed to change the API URL to https://<RSN>.services.ai.azure.com/anthropic/v1.
Without "services", no connection could be established.

If you use the azure provider in opencode this should just work, all models should behave as expected.

I'm realizing we mistakenly added a duplicate provider to models.dev called azure-cognitive-services if you are using that one it may not behave correctly so make sure you are authed for azure

Using the default azure provider with v1.14.32 results in:

_.responses is not a function. (In '_.responses($)', '_.responses' is undefined)

when using Claude models. The custom config is still required.

I think this should be re-opened.

Oh thanks for raising thatll be resolved in next release

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[FEATURE]: Add support for Anthropic models in Azure AI Foundry #4474

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[FEATURE]: Add support for Anthropic models in Azure AI Foundry #4474

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rekram1-node commented on Nov 19, 2025

cau1k commented on Nov 20, 2025

rekram1-node commented on Nov 20, 2025

cau1k commented on Nov 20, 2025

krishna1s commented on Nov 20, 2025

rekram1-node commented on Nov 20, 2025

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