zed-industries/zed · error · LanguageModelCompletionError

{display_name} is not available in {region}. Try switching t

Error message

{display_name} is not available in {region}. Try switching to a region where this model is supported.

What it means

User-facing translation of a Bedrock ValidationException in BedrockModel's streaming path: Bedrock rejected the request with a validation error whose message contains "model identifier is invalid", meaning the chosen model ID does not exist in the configured AWS region (wrong region for this model, model not enabled/subscribed there, or a stale model id). The raw AWS message is replaced with this actionable message naming the model's display name and region.

Source

Thrown at crates/language_models/src/provider/bedrock.rs:987

            self.model.default_temperature(),
            self.model.max_output_tokens(),
            self.model.thinking_mode(),
            self.model.supports_caching(),
            self.model.supports_tool_use(),
            guardrail_identifier,
            guardrail_version,
        ) {
            Ok(request) => request,
            Err(err) => return futures::future::ready(Err(err.into())).boxed(),
        };

        let request = self.stream_completion(request, cx);
        let display_name = self.model.display_name().to_string();
        let executor = cx.background_executor().clone();
        let future = self.request_limiter.stream(async move {
            let response = request.await.map_err(|err| match err {
                BedrockError::Validation(ref msg) => {
                    if msg.contains("model identifier is invalid") {
                        LanguageModelCompletionError::from_provider_response(
                            PROVIDER_NAME,
                            None,
                            Some("ValidationException".to_string()),
                            format!(
                                "{display_name} is not available in {region}. \
                                 Try switching to a region where this model is supported."
                            ),
                            None,
                            ProviderErrorCategory::InvalidRequest,
                        )
                    } else {
                        LanguageModelCompletionError::from_provider_response(
                            PROVIDER_NAME,
                            None,
                            Some("ValidationException".to_string()),
                            msg.clone(),
                            None,

View on GitHub (pinned to 5a9b9558db)

Solutions

1. Switch the Bedrock region setting to one where the model is available
2. Verify the model is enabled/subscribed for your AWS account in that region (model access in the Bedrock console)
3. Check that the configured model id/region pair hasn't changed (AWS retires or renames model ids)
4. Retry after changing region; the underlying error is deterministic, not transient

When it happens

Trigger: Thrown at crates/language_models/src/provider/bedrock.rs:984 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of zed-industries/zed@5a9b9558db (2026-08-20). Data as JSON: /api/errors/a4fbaf2b9b65e549. Report an issue: GitHub.