mem0ai/mem0 · error · Error

Unknown provider in model: ${model}

Error message

Unknown provider in model: ${model}

What it means

When no providerOverride is given, extractProvider() scans the model id for a word-boundary match against the PROVIDERS list (ai21, amazon, anthropic, cohere, meta, mistral, stability, writer, deepseek, gpt-oss, perplexity, snowflake, titan, command, j2, llama, minimax). If none appears, the SDK cannot infer how to parse the response, so it throws with the model id that failed.

Source

Thrown at mem0-ts/src/oss/src/llms/aws_bedrock.ts:50

export function extractProvider(
  model: string,
  providerOverride?: string,
): string {
  if (providerOverride) {
    if (!PROVIDERS.includes(providerOverride)) {
      throw new Error(
        `Unknown providerOverride '${providerOverride}'. Valid providers: ${PROVIDERS.join(", ")}`,
      );
    }
    return providerOverride;
  }
  for (const provider of PROVIDERS) {
    const re = new RegExp(
      `\\b${provider.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")}\\b`,
    );
    if (re.test(model)) return provider;
  }
  throw new Error(`Unknown provider in model: ${model}`);
}

/**
 * AWS Bedrock fields (awsRegion / awsAccessKeyId / awsSecretAccessKey /
 * awsSessionToken / client) now live on the shared `LLMConfig`, so the
 * provider is configurable through the standard typed `Memory` config path.
 */
type AWSBedrockConfig = LLMConfig;

/**
 * AWS Bedrock LLM provider for the TypeScript OSS SDK.
 *
 * Mirrors `mem0/llms/aws_bedrock.py`. Uses the Bedrock **Converse API**
 * (`ConverseCommand`), which provides a uniform message/tool interface across
 * the Anthropic / Amazon (Nova) / Meta / Mistral / Cohere model families, so a
 * single code path serves them all (the Python provider keeps per-family
 * `invoke_model` branches for legacy reasons; Converse supersedes them).
 *

View on GitHub (pinned to 001c235229)

Solutions

1. Use the full Bedrock model id including the provider prefix, e.g. 'anthropic.claude-3-sonnet-20240229-v1:0'
2. If the id genuinely lacks a provider token, set providerOverride to the correct family (e.g. 'anthropic')
3. For brand-new Bedrock models not in the list, providerOverride is the only path; also report an issue so the list is extended

Example fix

// before
new AWSBedrockLLM({ model: "claude-3-sonnet" }); // no provider token

// after
new AWSBedrockLLM({ model: "claude-3-sonnet", providerOverride: "anthropic" });
// or use the full id: "anthropic.claude-3-sonnet-20240229-v1:0"

const KNOWN = ["ai21","amazon","anthropic","cohere","meta","mistral","stability","writer","deepseek","gpt-oss","perplexity","snowflake","titan","command","j2","llama","minimax"];
const hasProvider = KNOWN.some((p) => new RegExp(`\\b${p}\\b`).test(modelId));
if (!hasProvider && !override) {
  throw new Error(`Model id '${modelId}' contains no known provider - set providerOverride`);
}

function isUnknownProviderModelError(err: unknown): boolean {
  return err instanceof Error && err.message.startsWith("Unknown provider in model:");
}

try { extractProvider(modelId); }
catch (err) {
  if (err instanceof Error && err.message.startsWith("Unknown provider in model:")) {
    throw new Error("Use the full Bedrock model id (e.g. anthropic.claude-3-...) or pass providerOverride");
  }
  throw err;
}

When it happens

Trigger: Passing a bare model name like 'claude-3-sonnet' (no 'anthropic.' prefix), 'my-custom-model', or an inference-profile / marketplace ARN whose identifier contains no recognized provider token; region-prefixed ids like 'eu.anthropic...' actually match ('anthropic' token), but fully custom fine-tune names do not.

Common situations: Custom or fine-tuned model names; CrossRegionInference profile ids; copying display names from the Bedrock console instead of the model id; new provider models added to Bedrock before this list is updated.

Related errors

• Unknown providerOverride '${providerOverride}'. Valid provid
• Together API key is required
• Failed to parse googleServiceAccountJson: ${err.message}
• Vertex AI could not determine a Google Cloud project ID. Set
• Anthropic API key is required

AI-assisted analysis of mem0ai/mem0@001c235229 (2026-08-15). Data as JSON: /api/errors/fe6e5cb8379b9483. Report an issue: GitHub.