Modelflare

Modelflare is one API gateway for apps, agents, and coding tools. Keep the client you already use, point it at https://modelflare.dev/v1, and call many model families with the same key, instead of juggling separate accounts and providers just to finish one task.

Lower price where it matters. Selected routes bill down to 1.5% of the official list price, and a single top-up of US$20 unlocks GPT at that 0.015x rate. For teams and heavy users, everyday requests can cost a small fraction of list price without changing how you code.

You stay in control of cost and stability. Everyday traffic can stay on a lower-cost group, while more sensitive jobs can use a balanced or higher-stability group. The pricing page shows what you pay against the official list price. Balance is in US dollars: one dollar of top-up is one dollar of credit, and Castaly uses that same balance.

Reliability is built in. A key can list fallback groups in order, so if the primary group is unavailable, the request moves to the next group and your workflow keeps running. Each request records status, latency, token usage, and cost, whether it came from your own code or from Castaly.

Many models, one account. GPT uses OpenAI Chat Completions and the Responses API, including Codex-style clients. Claude uses Anthropic Messages, including Claude Code. Grok, GLM, Seedance, and MiniMax are on the same key, along with DeepSeek, Kimi, Owen, Gemini, and image and video models, so switching models rarely means switching tools.

Castaly (https://castaly.modelflare.dev) is the studio on that account. In the browser you generate images and video with Seedance, Kling, Wan, MiniMax, Seedream, and other models from the same catalog. You compare specifications and price, set the shot parameters, and remix a community work from its prompt and settings, turning other people's ideas into a starting point for your own.

Everything is connected. Account, balance, API keys, and usage history are shared with Modelflare, so a result made in Castaly can also be requested through the API. Create a key at https://modelflare.dev, set the base URL to https://modelflare.dev/v1, or start a shot in Castaly.