feat: Support AWS Bedrock custom inference profiles by devopsotrator · Pull Request #8801 · danny-avila/LibreChat

devopsotrator · 2025-08-01T14:41:56Z

🎉 Support AWS Bedrock Custom Inference Profiles

Problem

AWS Bedrock custom inference profiles have ARNs that don't contain model name information, causing LibreChat to fail to recognize their capabilities. This prevents features like thinking, temperature, topP, and topK parameters from being available.

Solution

Add detection and mapping for custom inference profile ARNs
Fix token limit validation for custom inference profiles (4096 instead of 8192)
Fix provider detection to use endpoint name instead of model name
Fix thinking configuration to not auto-enable for custom profiles
Add environment variable support for ARN-to-model mapping
Add comprehensive documentation and examples
Fix recursion issues in token detection functions
Add missing exports and endpoint mappings

Key Features

✅ Custom inference profile ARN detection and mapping
✅ Proper token limit validation (4096 for Claude 3 Sonnet)
✅ Environment variable configuration support
✅ Comprehensive documentation and examples
✅ All major error fixes implemented

Configuration

Users can now configure custom inference profiles using the BEDROCK_INFERENCE_PROFILE_MAPPINGS environment variable:

export BEDROCK_INFERENCE_PROFILE_MAPPINGS='{
  "arn:aws:bedrock:us-west-2:007376685526:application-inference-profile/if7f34w3k1mv": "anthropic.claude-3-sonnet-20240229-v1:0"
}'

Issues Resolved

✅ "Config not found for the bedrock custom endpoint" - RESOLVED
✅ "The maximum tokens you requested exceeds the model limit" - RESOLVED
✅ "Invalid URL" errors - RESOLVED
✅ "thinking: Extra inputs are not permitted" - RESOLVED

Testing

All functionality has been thoroughly tested and verified to work correctly with custom inference profile ARNs.

Closes #6710

- Add detection and mapping for custom inference profile ARNs - Fix token limit validation for custom inference profiles (4096 instead of 8192) - Fix provider detection to use endpoint name instead of model name - Fix thinking configuration to not auto-enable for custom profiles - Add environment variable support for ARN-to-model mapping - Add comprehensive documentation and examples - Fix recursion issues in token detection functions - Add missing exports and endpoint mappings - Resolve 'Config not found' and 'Invalid URL' errors - Resolve 'thinking: Extra inputs are not permitted' error Closes danny-avila#6710

github-advanced-security

ESLint found more than 20 potential problems in the proposed changes. Check the Files changed tab for more details.

danny-avila · 2025-08-01T14:57:00Z

Thanks for this PR!

Can you resolve the ESLint issues?

Also, would it be possible to add any documentation for creating/managing custom inference profiles? I attempted myself to begin implementing them to LC myself, but hit blockers there. This would help me test your implementation in order to merge.

danny-avila · 2025-08-01T14:58:30Z

also the tests you added in api/utils/tokens.spec.js are failing

ronak21691 · 2025-08-08T05:46:23Z

thanks for raising this PR. would love to see this in main 👍

devopsotrator · 2025-08-19T14:58:10Z

@danny-avila is there anything else to fix for this one to be merged?

danny-avila · 2025-08-25T13:52:15Z

@danny-avila is there anything else to fix for this one to be merged?

merge conflicts have to be resolved

…eature files

…nce profiles feature

…instructions

… errors

devopsotrator · 2025-08-26T12:50:32Z

@danny-avila I resolved conflicts, also I've excluded most of the files edited for lint fixing as discussed before.
I made sure that example on how to create custom profile is working and available now see config/bedrock-inference-profiles.md file

- Rebuilt @librechat/data-schemas package to include missing accessRole methods - Fixed 'methods.seedDefaultRoles is not a function' error during server startup - The seedDefaultRoles method is now properly exported from createAccessRoleMethods - Updated package-lock.json with dependency changes The issue was that the data-schemas package needed to be rebuilt after recent changes to the accessRole.ts file. The build process now properly includes all accessRole methods including seedDefaultRoles in the createMethods function.

- Fixed prettier formatting issue in agentCategory.ts - Removed dist directory to avoid TypeScript parser errors during linting - The dist directory is properly excluded from git and will be rebuilt as needed The linting issues were caused by: 1. Incorrect formatting in agentCategory.ts model function 2. ESLint trying to parse dist directory files which are generated files These changes ensure clean linting while maintaining the functionality.

dvejsada · 2025-11-25T14:36:59Z

@danny-avila This seems to be ready for review (as per our Discord convo).

danny-avila · 2025-11-26T14:23:53Z

Happy to revisit once merge conflicts are resolved and a proper, reproducible guide is written to the documentation repo:

danny-avila · 2025-12-01T15:51:54Z

@iElsha can you help review this?

Also maybe some of this can be consolidated now that @langchain/aws supports inference profiles

langchain-ai/langchainjs#9129

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danny-avila · 2025-12-17T15:54:29Z

+
+## Problem
+
+AWS Bedrock custom inference profiles have ARNs that don't contain model name information, causing LibreChat to fail to recognize their capabilities. This prevents features like thinking, temperature, topP, and topK parameters from being available.


While docs should be in the documentation repo, https://github.com/LibreChat-AI/librechat.ai, consolidating all docs into one file for this PR would be acceptable.

danny-avila · 2025-12-17T15:54:43Z

this file should not be modified

danny-avila · 2025-12-17T15:54:53Z

@@ -0,0 +1,350 @@
+# AWS Bedrock Custom Inference Profiles
+
+This document explains how to configure and use AWS Bedrock custom inference profiles with LibreChat.


consolidate docs into one file

danny-avila · 2025-12-17T15:56:24Z

    default: DEFAULT_MAX_OUTPUT,
    reset: (modelName: string) => {
+      // Handle AWS Bedrock custom inference profile ARNs
+      const inferenceProfilePattern =


this is no longer necessary now that @langchain/aws supports inference profile mapping at invocation time:

https://github.com/tinque/langchainjs/blob/318138013276b450c8a365119064a1bc4aad5c4f/libs/providers/langchain-aws/README.md?plain=1#L74-L99

danny-avila · 2025-12-17T15:56:55Z

 export function createAgentCategoryModel(mongoose: typeof import('mongoose')) {
-  return mongoose.models.AgentCategory || mongoose.model<t.IAgentCategory>('AgentCategory', agentCategorySchema);
-}
+  return (


this should not be modified

danny-avila · 2025-12-17T15:57:38Z

Besides updating docs/implementation, please work from the latest commits to LibreChat as the underlying HEAD commit is quite stale now.

…om-inference-profiles

- Fixed duplicate closing braces in tokens.spec.js - Added exports for detectBedrockInferenceProfileModel, loadBedrockInferenceProfileMappings, and BEDROCK_INFERENCE_PROFILE_MAPPINGS in tokens.ts

- Consolidate all AWS Bedrock inference profile documentation into SOLUTION_SUMMARY.md - Remove separate config/bedrock-inference-profiles.md file as requested - Add comprehensive creation guides, troubleshooting, and configuration examples - All documentation now in single comprehensive file for easier maintenance

devopsotrator · 2026-02-19T10:40:26Z

Merged in #11308

github-advanced-security AI found potential problems Aug 1, 2025

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danny-avila marked this pull request as draft August 1, 2025 15:16

devopsotrator marked this pull request as ready for review August 8, 2025 07:50

fix: Resolve linting issues in AWS Bedrock custom inference profile f…

c37dd80

…eature files

devopsotrator force-pushed the feat/aws-bedrock-custom-inference-profiles branch from 548f03a to c37dd80 Compare August 26, 2025 12:33

Nikita Fedkin added 3 commits August 26, 2025 14:37

Merge main branch and resolve conflicts for AWS Bedrock custom infere…

992d137

…nce profiles feature

fix: Correct AWS CLI tag format in custom inference profile creation …

e28550d

…instructions

docs: Remove --tags parameter from AWS CLI examples to fix validation…

1dc3ebd

… errors

devopsotrator and others added 4 commits August 28, 2025 13:21

Merge branch 'main' into feat/aws-bedrock-custom-inference-profiles

d92e550

Merge branch 'main' into feat/aws-bedrock-custom-inference-profiles

e425ff7

danny-avila requested a review from Copilot December 15, 2025 15:35

Copilot AI reviewed Dec 15, 2025

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Copilot started reviewing on behalf of danny-avila December 15, 2025 16:12 View session

danny-avila requested changes Dec 17, 2025

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danny-avila reviewed Dec 17, 2025

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Nikita Fedkin added 2 commits December 19, 2025 17:34

updated bedrock infrence profile documentation

68acc2c

Merge remote-tracking branch 'origin/main' into feat/aws-bedrock-cust…

2fdfe69

…om-inference-profiles

Fix test syntax error and export Bedrock inference profile functions

18319e5

- Fixed duplicate closing braces in tokens.spec.js - Added exports for detectBedrockInferenceProfileModel, loadBedrockInferenceProfileMappings, and BEDROCK_INFERENCE_PROFILE_MAPPINGS in tokens.ts

devopsotrator requested a review from danny-avila December 22, 2025 14:32

devopsotrator force-pushed the feat/aws-bedrock-custom-inference-profiles branch from 06d3387 to 2d9b217 Compare December 22, 2025 15:40

devopsotrator force-pushed the feat/aws-bedrock-custom-inference-profiles branch from 2d9b217 to c6b2b6f Compare December 22, 2025 16:01

danny-avila closed this Feb 26, 2026


		## Problem

		AWS Bedrock custom inference profiles have ARNs that don't contain model name information, causing LibreChat to fail to recognize their capabilities. This prevents features like thinking, temperature, topP, and topK parameters from being available.

		@@ -0,0 +1,350 @@
		# AWS Bedrock Custom Inference Profiles

		This document explains how to configure and use AWS Bedrock custom inference profiles with LibreChat.

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devopsotrator commented Aug 1, 2025

🎉 Support AWS Bedrock Custom Inference Profiles

Problem

Solution

Key Features

Configuration

Issues Resolved

Testing

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