Anthropic Opus 4.8
Anthropic has released their latest LLM model in their Opus family. As per the benchmark it has performed well for majority of the benchmarks when you compare this agaist GPT-5.5 or Gemini 3.1 Pro
In terms of pricing 👇
| Mode | Input Tokens | Output Tokens |
|---|---|---|
| Regular | $5 per million | $25 per million |
| Fast | $10 per million | $50 per million |
And we can use this in Claude API with this id claude-opus-4-8
One of the interesting that this model introduce is Dynamic workflows which can be used to perform long running tasks like migrating large scale code base (maybe, they did Bun migration to rust to promote this feature as well 😅)
And now Messages API supports accepting system entires (metadata) inside the messages array without breaking prompt cache or routing the update through a user.
This can be used in a given harness to update permissions, token budgets, or environment context as an agent runs.