Managed LLM API comparison

KeepRouter vs OpenRouter: choose the routing and billing model you actually need

KeepRouter is a managed, prepaid model catalog with public customer prices, OpenAI- and Anthropic-compatible routes for supported chat models, and private operator-managed upstream routing. OpenRouter is a multi-provider API whose current documentation exposes request-level provider selection, sorting, fallback, data-policy, and BYOK controls. Choose KeepRouter for a bounded catalog and a simpler purchasing path; choose OpenRouter when your application must control provider routing directly. [1] [2] [6] [7]

Last reviewed 2026-09-29 · Editorial review: KeepRouter Editorial

Short answer

KeepRouter and OpenRouter both reduce the work of opening separate model accounts, but they expose different control surfaces. KeepRouter sells access to the models and endpoints in its live catalog through a KeepRouter account, prepaid credit, and KeepRouter API keys. OpenRouter's current official documentation describes a unified API with aggregated credits and detailed provider-routing preferences in the request body.

This is not a ranking and it is not a claim of feature parity. The practical question is whether your team wants a managed catalog with fewer routing decisions, or a broader provider-routing surface that your application can configure.

Decision table

Decision	KeepRouter	OpenRouter
Client API	Supported chat models can use OpenAI Chat Completions or Anthropic Messages; Responses and specialized modalities use their documented routes	Official docs center on its unified API and document OpenAI-style calls plus product-specific routing controls
Provider choice	Upstream routing is private and operator-managed; customers choose a public model ID, not a supplier endpoint	The provider object can order, allow, ignore, sort, constrain, or disable fallbacks among documented provider endpoints
Billing relationship	Prepaid KeepRouter credit; the live catalog publishes the current KeepRouter customer price and price unit for each model	OpenRouter documents credits, per-model and per-provider pricing, activity history, and BYOK under its current plan terms
Model discovery	Public model IDs, maker metadata when available, modality, endpoint, and customer price are visible before signup	OpenRouter publishes its own model browser and Models API, including provider-aware product metadata
Data and routing policy	Review KeepRouter's security and privacy pages; public pages do not promise a selectable upstream or universal retention policy	Current provider-routing docs expose fields such as data collection and zero-data-retention preferences where supported
Best fit	Teams that want a managed catalog, direct Anthropic-compatible access for supported chat models, and prepaid usage without operating provider policy	Teams that need request-level provider ordering, performance or price preferences, fallbacks, BYOK, or documented provider selection

When KeepRouter is the better fit

KeepRouter is the more direct choice when the models you need are already in the live catalog, you do not want to manage individual provider accounts, and you prefer to make model and endpoint decisions without also selecting a serving provider on every request. It is also a distinct option for applications that need both the OpenAI-compatible and Anthropic-compatible client shapes under the same KeepRouter account, subject to each model page's route support.

KeepRouter is not the better fit if your procurement or compliance process requires the application to name the serving provider, enforce a provider-specific order, bring its own upstream credentials, or choose routing by latency, throughput, quantization, or data-policy fields. Those controls are not part of KeepRouter's public customer contract.

When OpenRouter is the better fit

OpenRouter is the stronger fit when provider routing is an application requirement rather than an implementation detail. Its official provider-selection guide documents provider order, allow and ignore lists, fallback control, price or performance sorting, parameter requirements, and data-policy preferences. Its FAQ also documents aggregated credits, activity history, and BYOK terms.

Those controls add decisions that a team must test and govern. Read OpenRouter's live model, provider, privacy, and pricing documentation before purchase; this page deliberately does not copy a model count, fee, price, latency claim, or plan allowance that can change independently.

OpenRouter usage tracking

OpenRouter's FAQ points users to its Activity view for usage history and says entries can be filtered by model, provider, and API key. It also provides a credits API for balance information. That is an OpenRouter product capability, not evidence that an application's own customer, feature, or job is attributable. If unit economics matter, attach a stable non-sensitive application identifier in a supported field, keep a local request ID, and reconcile gateway usage with the application's successful task record.

Record	What it can answer	What it cannot answer alone
Gateway request metadata	Model, provider, tokens, latency, cost, key	Whether the end-user task was useful or completed
Application request record	Tenant, feature, job, outcome, retry	Which private provider route served the call unless the gateway returns it
Billing or credit ledger	Amount deducted and remaining balance	Output quality, user intent, or failure ownership

The usage-based billing feature explains the KeepRouter side of attribution. Use the same request ID boundary when comparing products.

OpenRouter data retention and ZDR

OpenRouter's current data-collection page says prompt and response bodies are not stored by default, while request metadata is stored. Its optional Input & Output Logging stores full content for a minimum of three months and may retain it longer unless deletion is requested. Provider endpoint policy is a separate layer. OpenRouter's ZDR controls restrict routing to eligible provider endpoints, but the documentation says those controls do not automatically cover plugins or tools.

This is not a one-cell yes or no feature. Review the gateway setting, provider endpoint, optional logging, tools, application logs, region, access roles, and deletion path. The dedicated OpenRouter prompt-retention answer maps those layers and includes a procurement checklist.

Migrate from OpenRouter to KeepRouter

Start with the browser-local API migration checker using credential-free JSON. It checks exact KeepRouter model IDs and flags routing fields; it does not send an inference request or certify compatibility. The Python and Node starter pack provides controlled dry-run examples.

Inventory the exact OpenRouter model IDs, endpoints, provider preferences, fallback fields, optional headers, tools, and streaming behavior your application uses.
Find an independently suitable KeepRouter catalog model. Do not assume similarly named IDs or provider variants map one-to-one.
Change the base URL and credential to KeepRouter, remove OpenRouter-specific provider and attribution fields, and use the endpoint listed on the KeepRouter model page.
Test a bounded non-streaming request, streaming, tool calls, error handling, token usage, and any Responses or Messages behavior separately.
Compare measured output quality and cost on your own workload before moving traffic. Keep the old integration available until the new path passes its acceptance checks.

Migrate from KeepRouter to OpenRouter

Map every KeepRouter public model ID to an OpenRouter model ID using OpenRouter's current catalog, then decide whether to accept its default routing or add explicit provider preferences. Replace KeepRouter-specific authentication and endpoints, retest protocol-specific features, and review OpenRouter's current privacy, fee, and BYOK terms. KeepRouter's private upstream mapping does not transfer and should not be inferred.

A provider filter can decide the outcome before a trial

If an application relies on provider.only or require_parameters, treat those fields as requirements, not optional decorations. OpenRouter documents their routing behavior. KeepRouter does not expose an equivalent provider object, so do not delete it and call the migration complete. A basic summarizer without those controls is a better initial trial: run identical documents, score factual coverage, and reconcile the cost of all attempts. The migration checker can flag configuration issues before a real call.

Use the OpenAI SDK guide or Claude Code guide to validate a KeepRouter client shape. The quickstart, security page, and model catalog are the sources of truth for the KeepRouter side of the decision.

Facts about OpenRouter on this page were reviewed on 15 August 2026 against its official Provider Routing and FAQ pages. Recheck those sources when making a purchase or migration decision.

Frequently asked questions

Is KeepRouter an OpenRouter reseller?

This comparison does not disclose or infer KeepRouter's private upstream routing. KeepRouter is the customer-facing gateway and billing relationship; use its public catalog and legal pages for the contract you receive.

Can I copy an OpenRouter model ID into KeepRouter?

No. Treat the two catalogs as separate namespaces and select the exact public ID and endpoint shown on the KeepRouter model page.

Does KeepRouter expose OpenRouter-style provider routing?

No public KeepRouter contract exposes request-level provider order, allow or ignore lists, BYOK, or performance sorting. Upstream routing remains operator-managed and private.

Do both products support Anthropic-shaped requests?

KeepRouter documents an Anthropic-compatible Messages endpoint for supported chat models. Check OpenRouter's current official API documentation for its present Anthropic client support rather than assuming parity from this page.

Which one is cheaper or faster?

This page makes no universal price or performance claim. Compare current prices and run the same bounded workload through the exact model, route, and policy you would deploy.

Sources reviewed

Sources last reviewed 2026-08-26