LibreChat/api/app/clients
Danny Avila 9a5d7eaa4e
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refactor: Replace tiktoken with ai-tokenizer (#12175)
* chore: Update dependencies by adding ai-tokenizer and removing tiktoken

- Added ai-tokenizer version 1.0.6 to package.json and package-lock.json across multiple packages.
- Removed tiktoken version 1.0.15 from package.json and package-lock.json in the same locations, streamlining dependency management.

* refactor: replace js-tiktoken with ai-tokenizer

- Added support for 'claude' encoding in the AgentClient class to improve model compatibility.
- Updated Tokenizer class to utilize 'ai-tokenizer' for both 'o200k_base' and 'claude' encodings, replacing the previous 'tiktoken' dependency.
- Refactored tests to reflect changes in tokenizer behavior and ensure accurate token counting for both encoding types.
- Removed deprecated references to 'tiktoken' and adjusted related tests for improved clarity and functionality.

* chore: remove tiktoken mocks from DALLE3 tests

- Eliminated mock implementations of 'tiktoken' from DALLE3-related test files to streamline test setup and align with recent dependency updates.
- Adjusted related test structures to ensure compatibility with the new tokenizer implementation.

* chore: Add distinct encoding support for Anthropic Claude models

- Introduced a new method `getEncoding` in the AgentClient class to handle the specific BPE tokenizer for Claude models, ensuring compatibility with the distinct encoding requirements.
- Updated documentation to clarify the encoding logic for Claude and other models.

* docs: Update return type documentation for getEncoding method in AgentClient

- Clarified the return type of the getEncoding method to specify that it can return an EncodingName or undefined, enhancing code readability and type safety.

* refactor: Tokenizer class and error handling

- Exported the EncodingName type for broader usage.
- Renamed encodingMap to encodingData for clarity.
- Improved error handling in getTokenCount method to ensure recovery attempts are logged and return 0 on failure.
- Updated countTokens function documentation to specify the use of 'o200k_base' encoding.

* refactor: Simplify encoding documentation and export type

- Updated the getEncoding method documentation to clarify the default behavior for non-Anthropic Claude models.
- Exported the EncodingName type separately from the Tokenizer module for improved clarity and usage.

* test: Update text processing tests for token limits

- Adjusted test cases to handle smaller text sizes, changing scenarios from ~120k tokens to ~20k tokens for both the real tokenizer and countTokens functions.
- Updated token limits in tests to reflect new constraints, ensuring tests accurately assess performance and call reduction.
- Enhanced console log messages for clarity regarding token counts and reductions in the updated scenarios.

* refactor: Update Tokenizer imports and exports

- Moved Tokenizer and countTokens exports to the tokenizer module for better organization.
- Adjusted imports in memory.ts to reflect the new structure, ensuring consistent usage across the codebase.
- Updated memory.test.ts to mock the Tokenizer from the correct module path, enhancing test accuracy.

* refactor: Tokenizer initialization and error handling

- Introduced an async `initEncoding` method to preload tokenizers, improving performance and accuracy in token counting.
- Updated `getTokenCount` to handle uninitialized tokenizers more gracefully, ensuring proper recovery and logging on errors.
- Removed deprecated synchronous tokenizer retrieval, streamlining the overall tokenizer management process.

* test: Enhance tokenizer tests with initialization and encoding checks

- Added `beforeAll` hooks to initialize tokenizers for 'o200k_base' and 'claude' encodings before running tests, ensuring proper setup.
- Updated tests to validate the loading of encodings and the correctness of token counts for both 'o200k_base' and 'claude'.
- Improved test structure to deduplicate concurrent initialization calls, enhancing performance and reliability.
2026-03-10 23:14:52 -04:00
..
prompts 🔧 chore: Update ESLint Config & Run Linter (#10986) 2025-12-15 17:55:25 -05:00
specs 💸 fix: Model Identifier Edge Case in Agent Transactions (#11988) 2026-02-28 09:06:32 -05:00
tools refactor: Replace tiktoken with ai-tokenizer (#12175) 2026-03-10 23:14:52 -04:00
BaseClient.js 💸 fix: Model Identifier Edge Case in Agent Transactions (#11988) 2026-02-28 09:06:32 -05:00
index.js 🪦 refactor: Remove Legacy Code (#10533) 2025-12-11 16:36:12 -05:00
OllamaClient.js 🧵 refactor: Migrate Endpoint Initialization to TypeScript (#10794) 2025-12-11 16:37:16 -05:00
TextStream.js 🧹 chore: Cleanup Logger and Utility Imports (#9935) 2025-10-01 23:30:47 -04:00