Granite 4.2 8B vs Solar Pro 4: side-by-side summary

Granite 4.2 8B and Solar Pro 4 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Granite 4.2 8B, from ibm-granite, has a 131,072-token context window and is priced at $0.10/M tokens input, $0.15/M tokens output on OpenRouter.

Solar Pro 4, from upstage, has a 524,288-token context window and is priced at $0.03/M tokens input, $0.12/M tokens output on OpenRouter.

Context window

• Granite 4.2 8B: 131,072 tokens
• Solar Pro 4: 524,288 tokens

Price

• Granite 4.2 8B: $0.10/M tokens input, $0.15/M tokens output
• Solar Pro 4: $0.03/M tokens input, $0.12/M tokens output

Provided by

• Granite 4.2 8B: ibm-granite
• Solar Pro 4: upstage

• Granite 4.2 8B model details, providers and pricing
• Solar Pro 4 model details, providers and pricing