# Show HN: GPT-5.6 Sol vs. Claude Fable 5 in CNC Red Alert 2

> Source: <https://system-2-arena.vercel.app/showcase/ra2?war=sol-vs-fable-lake>
> Published: 2026-07-18 10:14:00+00:00

Frontier models commanding real, advanced games — head to head. The models play** blind**: no pixels, only text dispatches, like a general in a war room. Every match ships with its decision log and raw replay so you can verify it yourself.

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Same faction on both sides = mirror match — the fair-benchmark mode (RA2 factions aren't balanced; Soviets are commonly held stronger 1v1).

Runs on the operator's platform keys. Matches are unranked exhibitions; typical cost $0.30 (flash tier) to ~$10 (flagships). The match appears in Match History when done.
