🤖 feat: Claude Opus 4.6 - 1M Context, Premium Pricing, Adaptive Thinking (#11670)

* feat: Implement new features for Claude Opus 4.6 model

- Added support for tiered pricing based on input token count for the Claude Opus 4.6 model.
- Updated token value calculations to include inputTokenCount for accurate pricing.
- Enhanced transaction handling to apply premium rates when input tokens exceed defined thresholds.
- Introduced comprehensive tests to validate pricing logic for both standard and premium rates across various scenarios.
- Updated related utility functions and models to accommodate new pricing structure.

This change improves the flexibility and accuracy of token pricing for the Claude Opus 4.6 model, ensuring users are charged appropriately based on their usage.

* feat: Add effort field to conversation and preset schemas

- Introduced a new optional `effort` field of type `String` in both the `IPreset` and `IConversation` interfaces.
- Updated the `conversationPreset` schema to include the `effort` field, enhancing the data structure for better context management.

* chore: Clean up unused variable and comments in initialize function

* chore: update dependencies and SDK versions

- Updated @anthropic-ai/sdk to version 0.73.0 in package.json and overrides.
- Updated @anthropic-ai/vertex-sdk to version 0.14.3 in packages/api/package.json.
- Updated @librechat/agents to version 3.1.34 in packages/api/package.json.
- Refactored imports in packages/api/src/endpoints/anthropic/vertex.ts for consistency.

* chore: remove postcss-loader from dependencies

* feat: Bedrock model support for adaptive thinking configuration

- Updated .env.example to include new Bedrock model IDs for Claude Opus 4.6.
- Refactored bedrockInputParser to support adaptive thinking for Opus models, allowing for dynamic thinking configurations.
- Introduced a new function to check model compatibility with adaptive thinking.
- Added an optional `effort` field to the input schemas and updated related configurations.
- Enhanced tests to validate the new adaptive thinking logic and model configurations.

* feat: Add tests for Opus 4.6 adaptive thinking configuration

* feat: Update model references for Opus 4.6 by removing version suffix

* feat: Update @librechat/agents to version 3.1.35 in package.json and package-lock.json

* chore: @librechat/agents to version 3.1.36 in package.json and package-lock.json

* feat: Normalize inputTokenCount for spendTokens and enhance transaction handling

- Introduced normalization for promptTokens to ensure inputTokenCount does not go negative.
- Updated transaction logic to reflect normalized inputTokenCount in pricing calculations.
- Added comprehensive tests to validate the new normalization logic and its impact on transaction rates for both standard and premium models.
- Refactored related functions to improve clarity and maintainability of token value calculations.

* chore: Simplify adaptive thinking configuration in helpers.ts

- Removed unnecessary type casting for the thinking property in updatedOptions.
- Ensured that adaptive thinking is directly assigned when conditions are met, improving code clarity.

* refactor: Replace hard-coded token values with dynamic retrieval from maxTokensMap in model tests

* fix: Ensure non-negative token values in spendTokens calculations

- Updated token value retrieval to use Math.max for prompt and completion tokens, preventing negative values.
- Enhanced clarity in token calculations for both prompt and completion transactions.

* test: Add test for normalization of negative structured token values in spendStructuredTokens

- Implemented a test to ensure that negative structured token values are normalized to zero during token spending.
- Verified that the transaction rates remain consistent with the expected standard values after normalization.

* refactor: Bedrock model support for adaptive thinking and context handling

- Added tests for various alternate naming conventions of Claude models to validate adaptive thinking and context support.
- Refactored `supportsAdaptiveThinking` and `supportsContext1m` functions to utilize new parsing methods for model version extraction.
- Updated `bedrockInputParser` to handle effort configurations more effectively and strip unnecessary fields for non-adaptive models.
- Improved handling of anthropic model configurations in the input parser.

* fix: Improve token value retrieval in getMultiplier function

- Updated the token value retrieval logic to use optional chaining for better safety against undefined values.
- Added a test case to ensure that the function returns the default rate when the provided valueKey does not exist in tokenValues.

client/package.json

@@ -148,7 +148,6 @@
     "jest-file-loader": "^1.0.3",
     "jest-junit": "^16.0.0",
     "postcss": "^8.4.31",
-    "postcss-loader": "^7.1.0",
     "postcss-preset-env": "^8.2.0",
     "tailwindcss": "^3.4.1",
     "typescript": "^5.3.3",

client/src/locales/en/translation.json

@@ -224,10 +224,11 @@
   "com_endpoint_agent": "Agent",
   "com_endpoint_agent_placeholder": "Please select an Agent",
   "com_endpoint_ai": "AI",
+  "com_endpoint_anthropic_effort": "Controls how much computational effort Claude applies. Lower effort saves tokens and reduces latency; higher effort produces more thorough responses. 'Max' enables the deepest reasoning (Opus 4.6 only).",
   "com_endpoint_anthropic_maxoutputtokens": "Maximum number of tokens that can be generated in the response. Specify a lower value for shorter responses and a higher value for longer responses. Note: models may stop before reaching this maximum.",
   "com_endpoint_anthropic_prompt_cache": "Prompt caching allows reusing large context or instructions across API calls, reducing costs and latency",
   "com_endpoint_anthropic_temp": "Ranges from 0 to 1. Use temp closer to 0 for analytical / multiple choice, and closer to 1 for creative and generative tasks. We recommend altering this or Top P but not both.",
-  "com_endpoint_anthropic_thinking": "Enables internal reasoning for supported Claude models (3.7 Sonnet). Note: requires \"Thinking Budget\" to be set and lower than \"Max Output Tokens\"",
+  "com_endpoint_anthropic_thinking": "Enables internal reasoning for supported Claude models. For Opus 4.6, uses adaptive thinking controlled by the Effort parameter. For other models, requires \"Thinking Budget\" to be set and lower than \"Max Output Tokens\".",
   "com_endpoint_anthropic_thinking_budget": "Determines the max number of tokens Claude is allowed use for its internal reasoning process. Larger budgets can improve response quality by enabling more thorough analysis for complex problems, although Claude may not use the entire budget allocated, especially at ranges above 32K. This setting must be lower than \"Max Output Tokens.\"",
   "com_endpoint_anthropic_topk": "Top-k changes how the model selects tokens for output. A top-k of 1 means the selected token is the most probable among all tokens in the model's vocabulary (also called greedy decoding), while a top-k of 3 means that the next token is selected from among the 3 most probable tokens (using temperature).",
   "com_endpoint_anthropic_topp": "Top-p changes how the model selects tokens for output. Tokens are selected from most K (see topK parameter) probable to least until the sum of their probabilities equals the top-p value.",
@@ -265,6 +266,7 @@
   "com_endpoint_default_with_num": "default: {{0}}",
   "com_endpoint_disable_streaming": "Disable streaming responses and receive the complete response at once. Useful for models like o3 that require organization verification for streaming",
   "com_endpoint_disable_streaming_label": "Disable Streaming",
+  "com_endpoint_effort": "Effort",
   "com_endpoint_examples": " Presets",
   "com_endpoint_export": "Export",
   "com_endpoint_export_share": "Export/Share",
@@ -1082,6 +1084,7 @@
   "com_ui_manage": "Manage",
   "com_ui_marketplace": "Marketplace",
   "com_ui_marketplace_allow_use": "Allow using Marketplace",
+  "com_ui_max": "Max",
   "com_ui_max_favorites_reached": "Maximum pinned items reached ({{0}}). Unpin an item to add more.",
   "com_ui_max_file_size": "PNG, JPG or JPEG (max {{0}})",
   "com_ui_max_tags": "Maximum number allowed is {{0}}, using latest values.",