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SpaceX adds two AI clusters at Colossus 2: Gun Range and Spam
Elon Musk said on X that SpaceX will add two AI supercomputer clusters at its Colossus 2 site. Gun Range, with about 220,000 GB300 chips configured for training and 800-gigabit networking, is expected to be operational by the end of November. Spam, with about 200,000 GB300 chips for inference and much less fiber, is slated for December. Musk said Colossus 2 will have around 1.2 million Blackwell chips by year-end.…
- Gun Range: about 220,000 GB300s for training, operational by end of November.
- Spam: about 200,000 GB300s for inference, due in December, with less fiber.
🔎 Why it matters: Gun Range and Spam would add about 420,000 GB300s to Colossus 2, separating training from inference, the workload that both the rented cloud and Grok products need.
📈 Upside: Spam uses simpler networking with less than half the fiber of the training builds, according to Musk.
📉 Risk: Anthropic contracts can be canceled with 90 days' notice after early 2027, so the $120.5 billion is a ceiling, not a fixed bill.
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