# CometAPI vs SeedRouter

CometAPI records 602,966 monthly visits with +49.7% month-over-month growth and Pay-as-you-go (credits) pricing. SeedRouter records 0 monthly visits with 0% growth and Pay-per-use pricing.

| Metric | [CometAPI](https://openaitools.app/tool/cometapi) | [SeedRouter](https://openaitools.app/tool/seedrouter) |
| :--- | :--- | :--- |
| Website URL | https://www.cometapi.com | https://seedrouter.ai |
| Categories | AI Developer Tools, AI API | AI API, AI Developer Tools |
| Pricing Model | Pay-as-you-go (credits) | Pay-per-use |
| Monthly Visits | 602,966 | 0 |
| MoM Growth Rate | +49.7% | 0% |
| Primary Market | India | Global |
| Direct Visits | 89,151 | 0 |
| Review Score | 4 | 4.2 |
| Saved Count | 2 | 0 |
| Supported Platforms | Website | Website |

## CometAPI

CometAPI is an aggregation layer for large language and multimodal model providers. Instead of maintaining separate accounts, keys and billing relationships with OpenAI, Anthropic, Google and a growing set of image, audio and video vendors, teams sign up once, get a single API key, and call any of 500+ models through an OpenAI-compatible base URL. Existing SDK code usually works after changing the base URL and model name, which keeps migration effort low.

The commercial pitch is straightforward: pay-as-you-go credits, line-item pricing for every model, and rates set below official vendor pricing, with the platform advertising ongoing savings of roughly 20 to 40 percent. There is no monthly subscription or minimum spend, unused credits carry forward, and the model catalog is searchable with side-by-side pricing and capability comparisons. Because model names are the only thing that changes when you switch vendors, teams gain portability if a provider raises prices or has an outage.

Operationally, CometAPI positions itself as production infrastructure rather than a demo playground. It advertises 99.9% service availability and average latency under 400 ms, exposes an API status page and benchmarks, and offers a dashboard for spend, latency and call volume with budget alerts. Enterprise-oriented features include centralized accounts for multiple teams, per-team budgets, encrypted transit and a stated policy that customer data is not used to train models. Integrations with coding agents, low-code automation platforms and app builders let teams plug the gateway into existing workflows rather than rebuilding them.

**Pricing & Plans:** Pay-as-you-go API credits with no monthly subscription, minimum spend or credit card required at signup. CometAPI advertises per-model rates below official vendor pricing, typically 20-40% cheaper, and test credits are included when you create an account.

- **One key for 500+ models:** Replace separate OpenAI, Anthropic and Google credentials with a single key and switch models by changing one line of code.
- **OpenAI-compatible endpoint:** Route text, reasoning, coding, image, audio and video workloads through one OpenAI-compatible base URL without rewriting your app.
- **Transparent pricing and savings:** Line-item pricing per model with discounts below official vendor rates, pay-as-you-go with no monthly subscription or minimum spend.
- **Usage analytics and cost control:** A real-time dashboard tracks spend, latency and call volume so you can set budget alerts and compare models side by side.
- **Prebuilt tool integrations:** Works with Claude Code, Codex, Cline, Dify, n8n, Zapier, Coze and other agent, automation and app-building tools.

**Strengths:** One credential and one endpoint for 500+ models from many providers; OpenAI-compatible format means existing code keeps working with minimal changes; Pay-as-you-go credits with no monthly fee and unused balance carried forward; Dashboard for spend, latency and call volume with budget alerts

**Limitations:** You depend on a third-party intermediary for uptime and latency on every routed model; Some catalog entries are marked coming soon, so not every listed model is instantly available; Pricing and availability can shift as upstream vendors change their own rates

[Profile (Markdown)](https://openaitools.app/tool/cometapi.md)

## SeedRouter

SeedRouter is an API aggregator built for developers who would rather not maintain separate accounts, SDKs and billing relationships for every AI model they use. The service hosts a catalogue of more than fifty live models across four modalities — image, video, large language and audio — and routes each request through a single OpenAI-compatible endpoint at api.seedrouter.ai/v1. Language models work with the standard OpenAI SDK by changing only the base URL and key, while image, video and audio jobs use a simple task-based API that returns a task id you can poll or receive back through a webhook.

Billing is prepaid and usage-based. You top up a USD balance by card, PayPal, crypto, Alipay or WeChat Pay, and the balance has no expiry date. Every model lists a transparent per-request, per-second or per-token rate, and the pricing page shows a side-by-side comparison with published official rates where available so you can judge the savings before committing. Notably, requests that fail are not charged, so a broken task costs nothing. There is no subscription and no monthly minimum.

Beyond the raw API, SeedRouter offers an MCP server for tools such as Claude Code, Cursor and Codex, letting an agent list models, read schemas, check pricing and submit generation tasks with your key. A web playground lets you try models before writing code, and the dashboard tracks the outcome and exact cost of every request. The platform states that customer prompts and outputs are not used to train its own models.

**Pricing & Plans:** Pay-per-use prepaid balance in USD with no subscription or monthly minimum. Top-ups start around $15 (crypto, +2% bonus), $20 (card, PayPal, Alipay, WeChat Pay) and $25 (card/Apple Pay/Google Pay). Typical listed rates include GPT Image 2.5 from about $0.0045 per image, Nano Banana Pro from about $0.019 per image, Seedance 2.5 video from about $0.10 per second, and LLM tokens from about $0.20 per 1M input tokens. Failed requests are not charged and balances never expire.

- **One key, every modality:** Reach image, video, LLM and audio models from a dozen-plus providers through a single SeedRouter API key and endpoint.
- **OpenAI-compatible LLM endpoint:** Point the existing OpenAI SDK at SeedRouter by changing the base URL and key, so current code and tooling keep working.
- **Async task API with webhooks:** Submit image, video and audio jobs, receive a task id, then poll or get a webhook callback when the render finishes.
- **Failed requests cost nothing:** Only delivered results are billed; failed or errored requests are excluded from your charges, and costs are logged per request.
- **MCP server for coding agents:** Add the SeedRouter MCP server to Claude Code, Cursor or Codex so agents can discover models, read schemas and generate media.

**Strengths:** Single endpoint and key dramatically simplifies multi-vendor integration work; Transparent per-request, per-second and per-token pricing with official-rate comparisons; Failed requests are not charged and prepaid balance never expires; OpenAI-compatible endpoint and an MCP server lower switching and agent-integration cost

**Limitations:** Requires prepaid top-ups and managing a balance rather than simple post-paid billing; Third-party aggregator, so availability and latency depend on upstream model vendors; Pricing tiers can settle at higher rates for longer or larger requests, adding cost-estimation nuance

[Profile (Markdown)](https://openaitools.app/tool/seedrouter.md)

## Frequently Asked Questions

### How do CometAPI and SeedRouter compare in monthly traffic?

CometAPI has 602,966 monthly visits, while SeedRouter has 0. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

CometAPI has a month-over-month growth rate of +49.7%; SeedRouter has 0%.

### How does pricing compare?

CometAPI: Pay-as-you-go (credits). Pay-as-you-go API credits with no monthly subscription, minimum spend or credit card required at signup. CometAPI advertises per-model rates below official vendor pricing, typically 20-40% cheaper, and test credits are included when you create an account. SeedRouter: Pay-per-use. Pay-per-use prepaid balance in USD with no subscription or monthly minimum. Top-ups start around $15 (crypto, +2% bonus), $20 (card, PayPal, Alipay, WeChat Pay) and $25 (card/Apple Pay/Google Pay). Typical listed rates include GPT Image 2.5 from about $0.0045 per image, Nano Banana Pro from about $0.019 per image, Seedance 2.5 video from about $0.10 per second, and LLM tokens from about $0.20 per 1M input tokens. Failed requests are not charged and balances never expire.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Google AI Studio](https://openaitools.app/tool/google-ai-studio) | 112,620,020 | +2% | Freemium | Google's rapid prototyping IDE and developer API workbench for building multimodal applications with Gemini models. | [.md](https://openaitools.app/tool/google-ai-studio.md) |
| 2 | [OpenRouter](https://openaitools.app/tool/openrouter-ai) | 19,941,437 | -6.2% | Paid | One API key for hundreds of AI models from every major provider | [.md](https://openaitools.app/tool/openrouter-ai.md) |
| 3 | [fal.ai](https://openaitools.app/tool/fal-ai) | 3,093,684 | -3.7% | Paid, pay-as-you-go usage-based pricing | Excels at serverless generation of media models like images and video, but is less focused on general LLM routing. | [.md](https://openaitools.app/tool/fal-ai.md) |
| 4 | [Together AI](https://openaitools.app/tool/together-ai) | 1,645,930 | +64.9% | Freemium, Paid | Specializes in high-performance serverless inference for open-source models, but offers fewer proprietary commercial model options. | [.md](https://openaitools.app/tool/together-ai.md) |
| 5 | [Atlas Cloud](https://openaitools.app/tool/atlas-cloud) | 777,031 | -16.4% | Paid | Offers unified access to multimodal language and media models, but focuses more heavily on generation infrastructure. | [.md](https://openaitools.app/tool/atlas-cloud.md) |
| 6 | [LiteLLM](https://openaitools.app/tool/litellm) | 576,967 | +7.9% | Freemium, Contact for Pricing | Open-source proxy and SDK that standardizes multi-provider LLM calls, but requires self-hosting or manual infrastructure setup. | [.md](https://openaitools.app/tool/litellm.md) |
| 7 | [EvoLink AI Model API](https://openaitools.app/tool/evolink-ai-model-api) | 312,573 | -27% | Free Trial, Paid, Contact for Pricing | One API for LLM, image, video, and audio models in production | [.md](https://openaitools.app/tool/evolink-ai-model-api.md) |
| 8 | [SiliconFlow](https://openaitools.app/tool/siliconflow) | 276,303 | -10.5% | Pay-as-you-go | One API for fast, cost-predictable inference on LLMs and multimodal models | [.md](https://openaitools.app/tool/siliconflow.md) |
| 9 | [AiHubMix](https://openaitools.app/tool/aihubmix) | 238,455 | -16.1% | Contact for Pricing | One API key for hundreds of AI models | [.md](https://openaitools.app/tool/aihubmix.md) |
| 10 | [AI/ML API](https://openaitools.app/tool/ai-ml-api) | 232,946 | -20.1% | Pay-as-you-go credits (free to start); enterprise custom pricing on request | One universal API for 500+ AI models and 1,000+ agentic tools | [.md](https://openaitools.app/tool/ai-ml-api.md) |

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Source: https://openaitools.app/compare/cometapi-vs-seedrouter

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