OpenAI-compatible API 15

APIMODELS is a unified AI model API that puts 100+ image, video, music, speech and LLM models behind one endpoint, one API key and one balance. Instead of opening an account with OpenAI, Google, Anthropic, ByteDance, Suno, ElevenLabs, MiniMax, xAI, DeepSeek, Alibaba and Zhipu separately — each with its own SDK, billing and approval process — you sign up once and switch models by changing a single string. Flagship image models, priced per image with no token math: • Nano Banana Pro (gemini-3-pro-image-preview) — $0.06 at 1K and 2K, $0.12 at 4K. Google lists the same model at $0.134 and $0.24, so that is 55% and 50% below list. Our $0.06 is also lower than Google's own Batch API price of $0.067 — and Batch makes you queue, while we return in real time. • Nano Banana 2 (gemini-3.1-flash-image-preview) — $0.05 at 1K and 2K, $0.08 at 4K, against Google's $0.067 / $0.101 / $0.151. That is 25% off at 1K, 50% off at 2K and 47% off at 4K. • GPT Image 2 (gpt-image-2) — a flat $0.025 per 1K image, $0.04 at 2K, $0.06 at 4K, with up to 16 reference images for multi-image editing. OpenAI bills this model by token; we bill a fixed price per image, and no OpenAI organization verification is required. The API is OpenAI-compatible, so existing SDKs, Cursor, Codex and LangChain code work by pointing base_url at apimodels.app. Billing is strictly pay-as-you-go with per-call prices published on every model page, starting at $0.001; there is no subscription, no monthly minimum and no expiring credits, and failed generations are never charged. New accounts get $0.10 of free credit with no card required. One API key for 100+ AI models — image, video, music, speech and LLM. Nano Banana Pro at $0.06/image, 55% below Google's list price. Pay-as-you-go, no subscription.

Unified low-cost API access to pooled AI subscription quotas Wokey is an AI subscription group-buying and API aggregation platform. It combines unused quotas from services such as Claude, ChatGPT, Kimi, DeepSeek, Grok, and other AI providers into a unified API service. Developers can use one API key and compatible OpenAI Chat Completions or Anthropic Messages protocols to access multiple models at usage-based prices, with advertised savings of up to 90% compared with official pricing. Wokey also provides image and video generation services, provider earnings through shared subscription capacity, intelligent routing, quota isolation, and cryptographic verification based on AWS Nitro attestation.

Unified pay-as-you-go API for leading AI models reAPI is a pay-as-you-go AI API aggregator that provides one unified endpoint and API key for accessing more than 100 image, video, language, music, audio, and code models. It routes requests across vendors based on health, latency, and load, provides automatic failover, preserves familiar SDK request formats, and charges users through prepaid credits. Supported models include GPT Image 2.5, GPT Image 2, Seedance, Seedream, Nano Banana, Claude, Kimi, GLM, Suno, and many others.

Self-hosted local AI platform for text, images, and speech Lemonade is a self-hosted local AI platform for running text, image, and speech models on your own hardware. It provides a GUI, CLI, REST API, and SDKs so you can chat locally, build AI apps and agents, and integrate local inference into existing tools. It is designed to be private by default, transparent, and flexible across major desktop and server platforms.

Unified AI router for Claude, GPT, Gemini, and 100+ models ApiFluxAI is a multi-protocol AI router and enterprise AI gateway that provides one API key for Claude, GPT, Gemini, DeepSeek, Qwen, Kimi, and more than 100 frontier models. It supports native Anthropic, OpenAI, and Gemini APIs, automatic failover, OpenAI-compatible integrations, transparent per-token billing, usage monitoring, and model switching. Developers can connect AI coding tools, SDKs, agents, and production applications by changing the API base URL instead of rewriting their code.

Third-party AI API gateway for OpenAI, Claude, and multiple models KaiGPT is an independent third-party AI API gateway for developers. It provides OpenAI-compatible API access, Claude API integration, multi-model routing, project-based API key management, usage tracking, and troubleshooting documentation. Developers can use the service through the gptzzz.ai domain, while available models, pricing, quotas, and capabilities depend on the user's account group and current console settings.

Governed infrastructure for building AI agents on connected business data CoreBase is a governed AI agent infrastructure platform for building and deploying customer-facing or internal AI agents on live business data. It connects databases, REST and GraphQL APIs, SaaS applications, on-premise systems, and legacy databases through an OpenAI-compatible API, SDK, or embeddable chat widget. CoreBase includes permissions, source scoping, read-only defaults, approval gates, audit logs, tenant isolation, prompt-injection screening, cost controls, and support for scheduled or event-driven automations. Its open-source CoreMCP bridge enables secure outbound-only access to on-premise, air-gapped, and legacy systems.

Low-cost, scalable inference for high-volume AI workloads Doubleword is an AI inference platform for high-volume workloads, offering OpenAI-compatible access to open-weight language, vision, OCR, and embedding models. It supports real-time, async, and approximately 24-hour batch inference, allowing users to trade latency for substantially lower token costs. Doubleword is designed for agentic reasoning, evaluations, synthetic data generation, annotation, extraction, coding workflows, and large-scale data processing. Its inference stack includes optimization technologies such as FlashOffload, Speculative KV Coding, and Cloudburst to improve throughput, cache efficiency, and startup times.

One API for accessing GPT, Claude, Gemini, and Grok LLMFly AI is an OpenAI-compatible API platform that lets developers access GPT, Claude, Gemini, Grok, and other leading AI models through a single API. It provides a centralized model catalog, pricing comparison, API key management, usage tracking, and documentation for integrating models into applications, agents, scripts, and backend services.

Unified LLM routing platform for lower-cost inference Auriko is a unified LLM inference platform that routes requests across multiple model providers to reduce cost, improve latency, and increase reliability. It uses cache-aware, quantitative routing logic to select optimized inference paths based on token price, cache behavior, performance, and workload patterns, while offering an OpenAI-compatible API.

Managed AI infrastructure for open models, agents, and scalable private deployments FlexAI is an agent-native AI infrastructure platform that provides managed inference for more than 20 open-weight models through one OpenAI-compatible API key. It supports text, vision, code, reasoning, embeddings, speech, audio, and image-generation workloads. Users can start with serverless model access, then scale to dedicated GPU endpoints, fine-tuning, and private AI cloud deployments across VPC, on-premises, or air-gapped environments. FlexAI also offers agent tools such as tool calling, streaming, structured outputs, approvals, governance, and audit trails.

One API for image, video, language, and audio AI models SeedRouter is a unified API platform that provides access to image, video, language, and audio AI models through one API key. Developers can switch between models from providers such as OpenAI, Anthropic, Google, and ByteDance without maintaining separate integrations. The platform uses pay-per-use billing in USD, charges only when results are delivered, and does not charge for failed requests.

Shared GPU infrastructure and community for running open AI models through an OpenAI-compatible API. NaN is a paid community and shared GPU inference platform for builders who want to run open AI models without managing their own infrastructure. It provides an OpenAI-compatible API, shared dedicated GPUs, EU-based processing, zero prompt and response logging, and access to language, embedding, reranking, text-to-speech, and speech-to-text models. Members can use the shared inference cluster, participate in a private Discord community, attend events, and vote on future models. The platform also offers a premium GLM 5.2 tier with published token allowances.

Native macOS server for fast local AI model inference oMLX is a native macOS inference server for running local AI models on Apple Silicon using Apple's MLX framework. It provides paged SSD KV caching to reduce time-to-first-token for coding agents, continuous batching for higher throughput, and OpenAI- and Anthropic-compatible APIs. oMLX supports LLM, vision-language, embedding, and reranker models, along with tool calling, MCP integration, multi-model serving, and a native menu bar application with a web dashboard.

One OpenAI- and Anthropic-compatible API for text, image and video models from leading AI labs. One key, one prepaid USD balance, published per-token prices. BoostRail gives developers and businesses one API for text, image and video models from Anthropic, OpenAI, Google, DeepSeek and other labs. It works with the OpenAI and Anthropic SDKs unchanged: point the base URL at BoostRail, use one key, and pick a model by its id. Each request runs on a checked route. If that route fails before the response starts, the request moves to another route of the same model — it never swaps in a different model. Usage is metered per token in USD against one prepaid balance, with prices published per model. Teams that already hold provider accounts can bring their own keys (BYOK): those requests run on their own quota and contract prices, with platform routes as automatic fallback. The BYOK free plan includes 1,000,000 requests a month.