Anthropic tells IPO investors its Mythos model got Claude running on AMD GPUs in about three days
In its roadshow presentation the company says Mythos wrote or ported nearly all the kernels for prompt processing on AMD MI355X chips, a job it says used to take dozens of engineers six to twelve months; the figures are unverified.
Why it matters
Nvidia's biggest advantage has been CUDA, the software stack that makes moving AI workloads to other chips slow and expensive. Anthropic's claim, made to investors as its IPO roadshow begins, is that AI can now do most of that porting work, which would make it easier for labs to choose chips on price and supply. Anthropic says it trains and runs Claude on all four major chip families. The claim covers prompt processing for one model and has not been independently verified. Watch whether other labs report similar results and how AMD and Nvidia respond.
Key facts
- Claim made in Anthropic's IPO roadshow presentation
- Chip: AMD MI355X
- About 3 days, versus 6 to 12 months before
- Mythos wrote or ported nearly 100% of kernels
- Covers prompt processing for one model
- Figures not independently verified