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MCS · Rigs · Compare

Side-by-side, with the numbers that matter.

Two rigs, one table. Higher numbers win in cobalt; TDP and price flip.

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SpecAnthropic Claude Opus 4.7El Capitan
Accelerator—AMD Instinct MI300A (APU)
Cache Discount Percent90—
Cache Read PER 1M USD0.5—
Claude Code Synergy Precision Bonus15—
Context Window Tokens M1—
Cores—11,340,000
CPU—AMD 4th Gen EPYC 24C 1.8GHz
Current Opus ModelClaude Opus 5.5—
Current Opus Version5.5—
Hpcg Tflops—17,406
Installation Year—2,024
Interconnect—HPE Slingshot-11
Lifecycle Statuslegacy (still available)—
Location—DOE/NNSA/Lawrence Livermore National Laboratory
Manufacturer—HPE
MAX Output Tokens K128—
Model—HPE Cray EX255a
Power KW—29,684.62
Pricing Input PER 1M USD5—
Pricing Output PER 1M USD25—
Released2026-04-16—
Rmax Pflops—1,809
Rpeak Pflops—2,821.1
TOP Listed ModelClaude Fable 5.1—
TOP Listed Model Version5.1—
Top500 Jun2026 NO1—LineShine (National Supercomputing Centre in Shenzhen, China)
Top500 Rank Jun2026—2
Top500 Rank Nov2024—1
Top500 Rank Nov2025—1
Version Decimal4.7—
Version Major4—
Version Minor7—