Name: OpenRouter
Brand: OpenRouter

Description

OpenRouter is the largest AI gateway — a platform aggregating access to 400+ language models from over 70 inference providers (OpenAI, Anthropic, Google, Meta, Mistral, xAI, Cohere, Together, Fireworks, Groq, Cerebras and many others) behind a single OpenAI-compatible API. Founded in early 2023 as the first LLM marketplace, it now serves 100 trillion tokens per month and over 10 million users (as of June 2026).

Value proposition

Eliminate vendor lock-in: switch model or provider without changing code (just change the model name in the request). Automatic failover between providers on outages. Better pricing through aggregated demand and competition among providers. Per-query routing (OpenRouter Fusion) — model selection by price, latency and quality.

Products and surfaces

Main product: API gateway (OpenAI-compatible REST + streaming). Additionally: OpenRouter Chat (browser chat UI), OpenRouter Fusion (multi-model routing), OpenRouter Rankings (public leaderboard of top-token models), OpenRouter Apps (registry of apps built on the platform), OpenRouter Labs (research experiments), OpenRouter Enterprise (SSO, SLA, access control).

Funding and investors

Two VC rounds: $40M Series A in 2024 (a16z, Menlo Ventures, Sequoia Capital) and $113M Series B on May 26, 2026 led by CapitalG (Alphabet's investment arm). Over $153M in total external funding. Business model: a per-token margin (typically 5%) added on top of providers' raw prices.

MLOps Lifecycle

1/14 supported

Model Registry

Versioning — model artifact versioning

Approval workflows — approval workflow before production

Immutable artifacts — immutability of stored versions

Lineage tracking — tracking data and model relationships

1 / 4 supported · 3 unsupported hidden

Prompt Management

Prompt registry — central prompt repository

Versioning — prompt versioning and history

Testing frameworks — A/B testing and prompt evaluation

0 / 3 supported · 3 unsupported hidden

Monitoring

Data drift detection — input data drift detection

Concept drift detection — concept drift detection

Hallucination monitoring — LLM hallucination monitoring

Bias evaluation tools — bias evaluation tooling

0 / 4 supported · 4 unsupported hidden

Human-in-the-Loop

Labeling services — data labeling tools

RLHF workflows — reinforcement learning from human feedback

Manual override — manual override of model decisions

0 / 3 supported · 3 unsupported hidden

Data & Knowledge

Security

Developer Ecosystem

SDK Languages

PyPythonJSJavaScriptTSTypeScript

API Type

REST

Community & resources

Templates library

Quickstarts

API Reference

Tutorials

Pricing & Business Model

See full pricing

Pricing models

Usage-based

Token-based

Resource quotas

Per project

Per user

Cost alerting

SLA & Support

CommunityStandardEnterprise 24/7

Sources

Sustainability

Energy intensity is a function of the provider selected per request — the OpenRouter layer itself adds minimal routing overhead. No own GPUs.

Description

Value proposition

Products and surfaces

Funding and investors

MLOps LifecycleiMLOps LifecycleFull model lifecycle: registry, feature store, prompt management, monitoring and human-in-the-loop.

Model Registry

Prompt Management

Monitoring

Human-in-the-Loop

Data & KnowledgeiData & Knowledge ManagementData connectors, vector database integration, native vector search and data management (PII, provenance, synthetic data).

SecurityiEnterprise SecurityCertifications, access controls and data-protection features essential for corporate deployments and cloud privacy compliance.

Developer EcosystemiDeveloper EcosystemDeveloper resources: available SDKs, supported programming languages, and infrastructure features and model-deployment methods.

Pricing & Business ModeliPricing & Business ModelBilling models (usage-based, provisioned throughput), resource limits and SLA parameters (uptime, support tiers).

SourcesiDocumentation VaultCentralized hub of links to official sources, technical guides, repositories and release notes.

SustainabilityiSustainabilityCarbon footprint, renewable-energy share powering data centers, and energy-efficiency metrics (e.g. PUE).