> ## Documentation Index > Fetch the complete documentation index at: https://docs.langchain.com/llms.txt > Use this file to discover all available pages before exploring further. # Create a model price > Create a custom model price for this workspace. The entry prices LLM runs whose model name matches `match_pattern`. It applies to runs ingested after it takes effect, which can take a few minutes; costs already recorded on existing runs are not recomputed. Costs are in US dollars per token. Returns 409 if the workspace already has an entry with the same name, match pattern, match path, provider, start time, and prompt token threshold. ## OpenAPI ````yaml /langsmith/langsmith-platform-openapi.json post /api/v1/model-price-map openapi: 3.1.0 info: title: LangSmith description: >+ The LangSmith API is used to programmatically create and manage LangSmith resources. ## Host https://api.smith.langchain.com ## Authentication To authenticate with the LangSmith API, set the `X-Api-Key` header to a valid [LangSmith API key](https://docs.langchain.com/langsmith/create-account-api-key#create-an-api-key). version: 0.1.0 servers: - url: / security: [] tags: - name: run x-group: Tracing - name: runs x-group: Tracing - name: sessions x-group: Tracing - name: tracer-sessions x-group: Tracing - name: threads x-group: Threads - name: datasets x-group: Datasets - name: examples x-group: Datasets - name: evaluators x-group: Evaluation - name: experiment-view-overrides x-group: Evaluation - name: experiments x-group: Evaluation - name: annotation-queues x-group: Feedback & Annotation - name: annotation_queues x-group: Feedback & Annotation - name: feedback x-group: Feedback & Annotation - name: feedback-configs x-group: Feedback & Annotation - name: alert_rules x-group: Monitoring - name: bulk-exports x-group: Monitoring - name: charts x-group: Monitoring - name: commits x-group: Prompts & Playground - name: directories x-group: Prompts & Playground - name: hub_environments x-group: Prompts & Playground - name: playground-settings x-group: Prompts & Playground - name: prompt-webhooks x-group: Prompts & Playground - name: prompts x-group: Prompts & Playground - name: tag-transitions x-group: Prompts & Playground - name: comments x-group: Prompt Hub - name: likes x-group: Prompt Hub - name: optimization-jobs x-group: Prompt Hub - name: ownerships x-group: Prompt Hub - name: repos x-group: Prompt Hub - name: settings x-group: Prompt Hub - name: tags x-group: Prompt Hub - name: integrations x-group: Integrations & Tools - name: mcp x-group: Integrations & Tools - name: mcp_vendors x-group: Integrations & Tools - name: oauth x-group: Integrations & Tools - name: tools x-group: Integrations & Tools - name: gateway-policies x-group: LLM Gateway - name: sandboxes x-group: Sandboxes - name: issues x-group: Issues - name: issues-agent x-group: Issues - name: Organizations x-group: Administration - name: SCIM Tokens x-group: Administration - name: TTL Settings x-group: Administration - name: access_policies x-group: Administration - name: api-key x-group: Administration - name: audit-logs x-group: Administration - name: auth x-group: Administration - name: aws_marketplace x-group: Administration - name: data_planes x-group: Administration - name: me x-group: Administration - name: orgs x-group: Administration - name: service-accounts x-group: Administration - name: tenant x-group: Administration - name: ttl-settings x-group: Administration - name: usage-limits x-group: Administration - name: workspaces x-group: Administration - name: ace x-group: System - name: backfills x-group: System - name: features x-group: System - name: info x-group: System - name: model-price-map x-group: System - name: public x-group: System - name: agents x-hidden: true - name: fleet orgs - name: fleet secrets - name: fleet tenants - name: fleet threads x-hidden: true - name: fleet users - name: productfeedback x-hidden: true - name: usage paths: /api/v1/model-price-map: post: tags: - model-price-map summary: Create a model price description: |- Create a custom model price for this workspace. The entry prices LLM runs whose model name matches `match_pattern`. It applies to runs ingested after it takes effect, which can take a few minutes; costs already recorded on existing runs are not recomputed. Costs are in US dollars per token. Returns 409 if the workspace already has an entry with the same name, match pattern, match path, provider, start time, and prompt token threshold. operationId: create_new_model_price_api_v1_model_price_map_post requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/ModelPriceMapCreateSchema' responses: '200': description: Successful Response content: application/json: schema: {} '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' security: - API Key: [] - Tenant ID: [] - Bearer Auth: [] components: schemas: ModelPriceMapCreateSchema: properties: name: type: string title: Name description: Display name for the entry, usually the model name. start_time: anyOf: - type: string format: date-time - type: 'null' title: Start Time description: >- Only price runs that started at or after this time. Null applies to runs from any time. match_path: items: type: string type: array title: Match Path description: >- Invocation parameter keys checked, in order, for the model name when the run does not report `ls_model_name` metadata. default: - model - model_name - model_id - model_path - endpoint_name match_pattern: type: string title: Match Pattern description: >- Regular expression matched against the run's model name, for example `^gpt-4o-mini$`. prompt_cost: anyOf: - type: number - type: string pattern: ^(?!^[-+.]*$)[+-]?0*\d*\.?\d*$ title: Prompt Cost description: Cost in US dollars per input (prompt) token. completion_cost: anyOf: - type: number - type: string pattern: ^(?!^[-+.]*$)[+-]?0*\d*\.?\d*$ title: Completion Cost description: Cost in US dollars per output (completion) token. prompt_cost_details: anyOf: - additionalProperties: anyOf: - type: number - type: string pattern: ^(?!^[-+.]*$)[+-]?0*\d*\.?\d*$ type: object - type: 'null' title: Prompt Cost Details description: >- Cost in US dollars per input token for specific token types, keyed by the token detail name the run reports, for example `cache_read`. Input tokens not covered here are priced at `prompt_cost`. completion_cost_details: anyOf: - additionalProperties: anyOf: - type: number - type: string pattern: ^(?!^[-+.]*$)[+-]?0*\d*\.?\d*$ type: object - type: 'null' title: Completion Cost Details description: >- Cost in US dollars per output token for specific token types, keyed by the token detail name the run reports, for example `audio`. Output tokens not covered here are priced at `completion_cost`. provider: anyOf: - type: string - type: 'null' title: Provider description: >- Only price runs from this provider (the `ls_provider` metadata, case-insensitive), for example `openai` or `anthropic`. Null matches any provider. prompt_tokens_above: anyOf: - type: integer maximum: 9007199254740991 minimum: 0 - type: 'null' title: Prompt Tokens Above description: >- Only price requests with more input tokens than this, for long-context pricing tiers. Null applies to every request. type: object required: - name - match_pattern - prompt_cost - completion_cost title: ModelPriceMapCreateSchema description: A custom model price entry for the workspace. examples: - completion_cost: '0.000008' match_pattern: ^gpt-4o$ name: gpt-4o (negotiated rate) prompt_cost: '0.000002' prompt_cost_details: cache_read: '0.000001' provider: openai HTTPValidationError: properties: detail: items: type: string type: array title: Detail type: object title: HTTPValidationError securitySchemes: API Key: type: apiKey in: header name: X-API-Key Tenant ID: type: apiKey in: header name: X-Tenant-Id Bearer Auth: type: http description: >- Bearer tokens are used to authenticate from the UI. Must also specify x-tenant-id or x-organization-id (for org scoped apis). scheme: bearer ````