Grok 4.5 vs Hy3: side-by-side summary

Grok 4.5 and Hy3 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Grok 4.5, from SpaceXAI, has a 500,000-token context window and is priced at $2/M tokens input, $6/M tokens output on OpenRouter.

Hy3, from tencent, has a 262,144-token context window and is priced at $0.126/M tokens input, $0.522/M tokens output on OpenRouter.

Context window

• Grok 4.5: 500,000 tokens
• Hy3: 262,144 tokens

Price

• Grok 4.5: $2/M tokens input, $6/M tokens output
• Hy3: $0.126/M tokens input, $0.522/M tokens output

Provided by

• Grok 4.5: SpaceXAI
• Hy3: tencent

• Grok 4.5 model details, providers and pricing
• Hy3 model details, providers and pricing