Anthropic Opus 5.5

• Anthropic launched Claude Opus 5.5, a model priced at $4 per million input tokens and $20 per million output tokens, which the company claims runs 40% cheaper than its predecessor, Opus 5.0:32
• Opus 5.5 is framed as the new state-of-the-art across key benchmarks, including a 66.4% score on agentic coding and a 57.8% score on Cursor Bench, though it remains contested whether these gains translate to broad real-world superiority.1:07
• The most compelling evidence cited is not benchmark data but a series of public demonstrations, including playable game clones like Mario Maker and complex Blender animations, which show interactive capabilities significantly more advanced than models from a year ago.5:02

OpenAI GPT6 Series

• OpenAI introduced GPT6 Soul and Luna on the same day as Anthropic’s launch, significantly reducing API costs—Soul dropped from $4 to $2 per million input tokens—to keep the company competitive in a fast-moving news cycle.9:08
• Despite the price cuts, GPT6 Soul is portrayed as less capable than Anthropic’s Opus 5.5 and OpenAI’s own previous flagship, GPT6 Astra, with few public demos available to showcase a clear competitive advantage.
• Economic efficiency varies by task; while Opus 5.5 is cheaper per token, its higher token consumption—roughly 119,000 tokens per task compared to 31,000 for GPT6 Soul—means that total per-task cost remains a critical metric for developers.13:44