Olmo 3 7B Think vs Claude Opus 4.5: side-by-side summary

Olmo 3 7B Think and Claude Opus 4.5 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Olmo 3 7B Think, from Ai2, has a 65,536-token context window and is priced by the provider serving it on OpenRouter.

Claude Opus 4.5, from Anthropic, has a 200,000-token context window and is priced at $5/M tokens input, $25/M tokens output on OpenRouter.

Context window

• Olmo 3 7B Think: 65,536 tokens
• Claude Opus 4.5: 200,000 tokens

Price

• Olmo 3 7B Think: Pricing varies by provider
• Claude Opus 4.5: $5/M tokens input, $25/M tokens output

Provided by

• Olmo 3 7B Think: Ai2
• Claude Opus 4.5: Anthropic

• Olmo 3 7B Think model details, providers and pricing
• Claude Opus 4.5 model details, providers and pricing