# AI tools for “High Concurrency API”

1,585 matching tools; showing 24, ranked by relevance.

Related categories: [ai-api](https://openaitools.app/category/ai-api.md)

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Why it matched | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [DeepSeek](https://openaitools.app/tool/deepseek) | 372,761,591 | +4.3% | Freemium | High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs. | category: ai-api; semantic match | [.md](https://openaitools.app/tool/deepseek.md) |
| 2 | [OpenAI Platform](https://openaitools.app/tool/openai) | 234,678,639 | -9.6% | Paid | Enterprise developer platform and API for deploying GPT-6 Astra, Sol, Luna, and realtime multimodal agents. | category: ai-api; semantic match | [.md](https://openaitools.app/tool/openai.md) |
| 3 | [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 | category: ai-api; semantic match | [.md](https://openaitools.app/tool/openrouter-ai.md) |
| 4 | [Groq](https://openaitools.app/tool/groq) | 3,987,936 | +10% | Paid | Ultra-fast AI inference on the LPU and LPX platform | category: ai-api; semantic match | [.md](https://openaitools.app/tool/groq.md) |
| 5 | [Qwen 4 (Alibaba Qwen4)](https://openaitools.app/tool/qwen-4) | 35,101,353 | -6.2% | Freemium | Alibaba Cloud's 4th-generation multimodal AI assistant and foundation model lineup (Qwen4-Max, Qwen4-Plus, Qwen4-Flash & open-weight Qwen4-27B) with 1M context. | category: ai-api; semantic match | [.md](https://openaitools.app/tool/qwen-4.md) |
| 6 | [Fireworks](https://openaitools.app/tool/fireworks-ai) | 659,687 | +6% | Contact for Pricing | Run, ensemble and train open AI models as your own specialized intelligence | category: ai-api; semantic match | [.md](https://openaitools.app/tool/fireworks-ai.md) |
| 7 | [Claude](https://openaitools.app/tool/claude-2) | 1,253,439,413 | +23.8% | Freemium | Anthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing. | category: ai-api | [.md](https://openaitools.app/tool/claude-2.md) |
| 8 | [OrcaRouter](https://openaitools.app/tool/orcarouter) | 975,300 | -5.2% | Freemium | One OpenAI-compatible gateway for adaptive LLM routing, guardrails, and spend control | category: ai-api; semantic match | [.md](https://openaitools.app/tool/orcarouter.md) |
| 9 | [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 | category: ai-api; semantic match | [.md](https://openaitools.app/tool/ai-ml-api.md) |
| 10 | [fal.ai](https://openaitools.app/tool/fal-ai) | 3,093,684 | -3.7% | Paid, pay-as-you-go usage-based pricing | One API for 1,500+ production-ready generative media models | category: ai-api; semantic match | [.md](https://openaitools.app/tool/fal-ai.md) |
| 11 | [Kie.ai](https://openaitools.app/tool/kie-ai-affordable-secure-deepseek-r1-api) | 2,275,553 | -22.4% | Pay-as-you-go | One API key for video, image, music, and chat models | category: ai-api; semantic match | [.md](https://openaitools.app/tool/kie-ai-affordable-secure-deepseek-r1-api.md) |
| 12 | [Atlas Cloud](https://openaitools.app/tool/atlas-cloud) | 777,031 | -16.4% | Paid | One OpenAI-compatible API for 500+ image, video, audio, and LLM models | category: ai-api; semantic match | [.md](https://openaitools.app/tool/atlas-cloud.md) |
| 13 | [CapMonster Cloud](https://openaitools.app/tool/capmonster-cloud) | 862,340 | +36.3% | Paid | AI-powered CAPTCHA solving API built for scale | category: ai-api; semantic match | [.md](https://openaitools.app/tool/capmonster-cloud.md) |
| 14 | [Gemini 4 Carbon (Gemini Carbon 4)](https://openaitools.app/tool/gemini-4-carbon) | 4,339,429 | +12.7% | Freemium | Google DeepMind's #1 frontier AI model (Gemini Carbon 4) for long-horizon agentic coding, cybersecurity defense, and 1M-token multimodal reasoning. | category: ai-api; semantic match | [.md](https://openaitools.app/tool/gemini-4-carbon.md) |
| 15 | [TinyFish](https://openaitools.app/tool/tinyfish) | 1,124,952 | +199.7% | Freemium, Contact for Pricing | One API key for agent-grade web search, fetch, browsing and automation | category: ai-api; semantic match | [.md](https://openaitools.app/tool/tinyfish.md) |
| 16 | [Composio](https://openaitools.app/tool/composio) | 2,782,603 | +22.8% | Freemium, Contact for Pricing | Give your AI agents secure, authenticated access to 1,700+ apps | category: ai-api; semantic match | [.md](https://openaitools.app/tool/composio.md) |
| 17 | [Doubleword](https://openaitools.app/tool/doubleword) | 21,405 | -56.3% | Paid, Contact for Pricing | High-throughput open-weight inference with latency-based pricing | category: ai-api; semantic match | [.md](https://openaitools.app/tool/doubleword.md) |
| 18 | [Runware](https://openaitools.app/tool/runware) | 402,862 | +27.1% | Paid | One API for 400K+ AI models, plus serverless and reserved GPUs on modular data centers | category: ai-api; semantic match | [.md](https://openaitools.app/tool/runware.md) |
| 19 | [Treg](https://openaitools.app/tool/treg) | 452,935 | +223.4% | Freemium | One key for 4,100+ agent tools, pay per call | category: ai-api; semantic match | [.md](https://openaitools.app/tool/treg.md) |
| 20 | [Together AI](https://openaitools.app/tool/together-ai) | 1,645,930 | +64.9% | Freemium, Paid | Together AI is the AI Native Cloud — a full-stack platform for running, fine-tuning and training open-source models. It spans serverless inference APIs, dedicated endpoints, GPU clusters, post-training and storage, all b | category: ai-api; semantic match | [.md](https://openaitools.app/tool/together-ai.md) |
| 21 | [LiteLLM](https://openaitools.app/tool/litellm) | 576,967 | +7.9% | Freemium, Contact for Pricing | One open-source AI gateway for 100+ LLM providers | category: ai-api; semantic match | [.md](https://openaitools.app/tool/litellm.md) |
| 22 | [Pruna AI](https://openaitools.app/tool/pruna-ai) | 229,282 | +234.7% | Paid | Performance models for fast, affordable image and video generation | category: ai-api; semantic match | [.md](https://openaitools.app/tool/pruna-ai.md) |
| 23 | [Cartesia](https://openaitools.app/tool/cartesia-ai) | 1,782,707 | +49.7% | Contact for Pricing | Real-time voice AI models and agents you can build on | category: ai-api; semantic match | [.md](https://openaitools.app/tool/cartesia-ai.md) |
| 24 | [ImageKit](https://openaitools.app/tool/imagekit) | 947,721 | -13.7% | Freemium, Paid, Contact for Pricing | Real-time image and video APIs, agentic DAM and creative automation in one platform | category: ai-api; semantic match | [.md](https://openaitools.app/tool/imagekit.md) |

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