Claude Opus 4.5 vs gpt-oss-safeguard-20b: side-by-side summary

Claude Opus 4.5 and gpt-oss-safeguard-20b are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

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.

gpt-oss-safeguard-20b, from OpenAI, has a 131,072-token context window and is priced at $0.075/M tokens input, $0.30/M tokens output on OpenRouter.

Context window

• Claude Opus 4.5: 200,000 tokens
• gpt-oss-safeguard-20b: 131,072 tokens

Price

• Claude Opus 4.5: $5/M tokens input, $25/M tokens output
• gpt-oss-safeguard-20b: $0.075/M tokens input, $0.30/M tokens output

Provided by

• Claude Opus 4.5: Anthropic
• gpt-oss-safeguard-20b: OpenAI

• Claude Opus 4.5 model details, providers and pricing
• gpt-oss-safeguard-20b model details, providers and pricing