What happened
Anthropic launched Claude Opus 4.5 with a two-thirds price reduction compared to its predecessor, Opus 4.1, cutting costs from $15 to $5 per million input tokens and from $75 to $25 per million output tokens. The new model offers enhanced capabilities targeting software development and compliance teams, including a 200,000 token context window and advanced computer use features. This pricing and capability update aims to restore Opus 4.5âs competitive position amid intensifying market competition from OpenAI and Google.
Why it matters
- The significant price cut makes Opus 4.5 viable for regular development work and complex problem-solving, expanding its use beyond only critical tasks.
- Enhanced features like a zoom tool and preserved thinking blocks improve efficiency for software development and compliance applications.
- The move signals a strategic shift in the enterprise AI market as Anthropic responds to competitive pressure from recent releases by OpenAI and Google.
Key facts
- 1. Claude Opus 4.5 pricing is $5 per million input tokens and $25 per million output tokens, a 67% reduction from Opus 4.1âs $15/$75 rates.
- 2. The model supports a 200,000 token context window and a 64,000 token output limit.
- 3. Opus 4.5 includes a new effort parameter for response speed and a zoom tool for enhanced computer use.
- 4. The knowledge cutoff for Opus 4.5 is March 2025, more recent than Sonnet 4.5âs January 2025 cutoff.
- 5. Claude Opus 4.5, Sonnet 4.5, and Haiku 4.5 are all available via the Claude API and major cloud platforms.
Key Voices
- Anthropic positions Claude Opus 4.5 as the âbest model in the world for coding, agents, and computer use,â aiming to regain leadership after competition from OpenAI and Google.
- Anthropic highlights new features like the zoom tool and preserved thinking blocks as key improvements enhancing model utility.
- Not stated in the article.
