Four categories: LLMs (language models), video generation, image generation, and audio & speech (TTS/ASR). Use the tabs above to browse each category, or visit the dedicated hub pages for per-model detail comparisons.

How often are prices updated?

For relay platforms with live API access (such as OpenRouter), LLM prices auto-scrape every ~6 hours. Official providers (OpenAI, Anthropic, etc.) and the Video/Audio/Image categories are manually maintained from official pricing pages and updated when providers announce changes.

What is the difference between official and relay API providers?

Official providers are the model developers themselves (OpenAI, Anthropic, Google, etc.). Relay services resell API access — often at a discount, but with different latency, SLA, and support terms. ComputeUnion lists both so you can choose based on your priorities.