OpenRouter: Industry-leading model router with transparent pricing and broad provider support, but lacks Comet's specific bundled discounts. CometAPI records 602,966 monthly visits with +49.7% month-over-month growth and Pay-as-you-go (credits) pricing. OpenRouter records 19,941,437 monthly visits with -6.2% growth and Paid pricing.
One OpenAI-compatible API key for 500+ AI models
One API key for hundreds of AI models from every major provider
| Dimension / Metric | | |
|---|---|---|
| Official Domain | cometapi.com | openrouter.ai |
| Pricing Model | Pay-as-you-go (credits) | Paid |
| Monthly Visits | 602.97K (602,966) | 19.94M (19,941,437) |
| MoM Traffic Delta | +200.26K (+49.7%) | -1.33M (-6.2%) |
| Primary Market & Share | 🇮🇳 India (23.4%) | 🇺🇸 United States (16.1%) |
| Direct Visits / mo | 89.15K | 11.96M |
| User Rating | 4 | 4.8 |
| Supported Platforms | Website | Website |
One OpenAI-compatible API key for 500+ AI models
Replace separate OpenAI, Anthropic and Google credentials with a single key and switch models by changing one line of code.
Route text, reasoning, coding, image, audio and video workloads through one OpenAI-compatible base URL without rewriting your app.
Line-item pricing per model with discounts below official vendor rates, pay-as-you-go with no monthly subscription or minimum spend.
A real-time dashboard tracks spend, latency and call volume so you can set budget alerts and compare models side by side.
One API key for hundreds of AI models from every major provider
Six hundred plus models for text, image, video, audio, transcription, embeddings, and reranking behind one OpenAI-compatible API.
Requests are rerouted to another provider on outages or rate limits by default, so you don't write custom retry logic.
The auto-router selects a model and provider per request using live marketplace performance and pricing data.
Track spend, tokens, and usage per model, provider, and team member in one place, including bring-your-own-key usage.
SpecialistGoogle's rapid prototyping IDE and developer API workbench for building multimodal applications with Gemini models.
SpecialistGoogle's rapid prototyping IDE and developer API workbench for building multimodal applications with Gemini models.
SpecialistExcels at serverless generation of media models like images and video, but is less focused on general LLM routing.
SpecialistExcels at serverless generation of media models like images and video, but is less focused on general LLM routing.
Offers robust serverless inference and GPU clusters for open models, but features a narrower selection of proprietary models.
Offers robust serverless inference and GPU clusters for open models, but features a narrower selection of proprietary models.
Features adaptive LLM routing and automatic failover, but lacks OpenRouter's massive ecosystem of community-rated model endpoints.
Features adaptive LLM routing and automatic failover, but lacks OpenRouter's massive ecosystem of community-rated model endpoints.
Offers unified access to multimodal language and media models, but focuses more heavily on generation infrastructure.
Offers unified access to multimodal language and media models, but focuses more heavily on generation infrastructure.
SpecialistDelivers exceptional inference speed and high-throughput performance for open models, but focuses primarily on hosted weights rather than multi-provider aggregation.
Free / Open-sourceProvides self-hosted and Python SDK control over 100+ LLMs, but requires setting up your own infrastructure.
SpecialistLow-cost serverless inference APIs for 200+ open models
One unified API for 100+ AI models, with insurance when output disappoints
One unified API for 100+ AI models, with insurance when output disappoints
One API for LLM, image, video, and audio models in production
One API for LLM, image, video, and audio models in production
One API for fast, cost-predictable inference on LLMs and multimodal models
One API for fast, cost-predictable inference on LLMs and multimodal models
Provides a similar OpenAI-compatible multi-model gateway with automatic failover, though with a different model lineup.
