Claude Code returns blank thinking blocks, but reasoning still costs you

Anthropic's Claude Code is reportedly failing to display its reasoning process, even though users are still being charged for these "thinking" tokens. Developers have noted blank outputs for the reasoning blocks in recent API interactions.
Key takeaways
- Claude Code API returning empty reasoning outputs
- Users charged for unseen thinking tokens
- Potential for unexpected costs for developers
- Transparency in AI reasoning is compromised
Why it matters
This issue impacts developers relying on Claude Code for transparent AI assistance. Users are paying for a feature that isn't visible, hindering their ability to debug or understand the AI's decision-making process.
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