Anthropic · OpenAI · Claude · Google · GPT · TechCrunch AI
Anthropic publishes Claude Sonnet 5 as a cheaper way to run agents
Compiled by KHAO Editorial — aggregated from 2 sources. See llms.txt for citation guidance.
◎ Multiple-sources
As shipping agentic capabilities becomes table stakes among foundation model companies, Anthropic is releasing Claude Sonnet 5, a more powerful and agentic version of the lab’s midsize model.
Key facts
- At launch, Sonnet 5 is priced at $2 per million input tokens and $10 per million output tokens through August 31, after which the price will jump to $3 per million input tokens and $15 per million
- For example, on one benchmark, Sonnet 5 scores a 63.2% on agentic coding, compared to Opus 4.8’s 69.2% and Sonnet 4.6’s 58.1%
- Updated to correct that the price of output tokens is $15 per million output tokens after August 31
- Sonnet 5 promises performance close to that of Opus 4.8, but for much lower costs
Summary
“It can make plans, use tools like browsers and terminals, and run autonomously at a level that, a few months ago, required larger and more expensive models,” Anthropic said in a blog post. That framing mirrors what OpenAI and Google have said about their own recent releases. Sonnet 5’s pitch is confirmation that agentic capability is the new baseline expectation at every price tier. Sonnet 5 promises performance close to that of Opus 4.8, but for much lower costs.