Anthropic · DeepSeek · OpenAI · Claude · GPT · U.S. · Decrypt
Why the cuts are real, not marketing
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Fuli Luo, head of Xiaomi's MiMo team and a former core DeepSeek developer who co-built DeepSeek-V2, published a technical explanation on X.
Key facts
- Claude Opus 4.7 costs $5 per million input tokens and $25 per million output tokens
- The Max plan at $100 now gets you 82 billion tokens, up from 1.6 billion
- That's a model that scored 80.6% on SWE-Verified against Claude Opus 4.6's 80.8% and that's the baseline, before any cache discounts
- GPT-5.5, released in late April, doubled its predecessor's output price to $30 per million tokens
Summary
DeepSeek made its 75% V4-Pro discount permanent on May 22, locking in output at $0.87 per million tokens. OpenAI's GPT-5.5 doubled output prices to $30 per million tokens at launch, and Anthropic's Claude Opus 4.7 shipped with an updated tokenizer that can inflate actual costs by up to 35%. DeepSeek made the 75% discount on DeepSeek V4-Pro, which was set to expire, permanent earlier this week. Quick explainer for the non-developers in the room: When you use ChatGPT or Claude in a browser, you're paying a flat subscription—or nothing. An API is the raw pipe that makes this possible, making it possible for an app, an agent, a web site, etc. to use the model in their own environment.