One OpenAI-compatible API for GPT, Claude, Gemini and Grok
LLMFly AI is an OpenAI-compatible API gateway: one key and one endpoint for GPT, Claude, Gemini, Grok and other leading models, with a centralized model catalog, price comparison across providers, key management, usage tracking and docs for integrating into apps, agents, scripts and backends. Free credits on signup plus a 10% referral reward program. Interface ships in English, simplified/traditional Chinese, Japanese and Korean.
This is the standard API-aggregator play — the differentiators to evaluate are uptime, rate limits, billing transparency and how quickly new models land after release, not the model list (they all list the same models).
Who it's for: developers who want multi-model access without multiple vendor accounts, and teams routing different tasks to different models through one integration. The aggregator test is boring but essential: check latency and error rates on your real traffic for a week before moving production volume, and read the terms on data handling — routing your prompts through a third party is a trust decision, not just a price decision.
What it is
One OpenAI-compatible API for GPT, Claude, Gemini and Grok
Pricing
Paid
Primary category
Developer Tools
Source code
Closed source / hosted
LLMFly AI is one of many tools in its category. Before committing to it, weigh a few practical points that tend to decide whether a tool actually fits your work:
We describe LLMFly AI and its alternatives honestly so you can compare on substance. Browse the similar tools below to see how it stacks up against other options in the same category.
