Compare Claude Opus 4.6 by Anthropic against GPT-5.3 Chat by OpenAI, context windows of 1.0M vs 128K, tested across 52 shared challenges. Updated March 2026.
47 fights queued
Tests an AI's ability to make educated estimates based on technical knowledge
We can do a back‑of‑the‑envelope estimate using a common scaling rule for transformer training compute.
FLOPs per token ≈ 6 × N
Reasoning (rough):
= 6 × N × T
Plug in values:
6 × (1.75 × 10^11) × (3 × 10^11)
First multiply constants: 6 × 1.75 × 3 = 31.5
Then powers: 10^11 × 10^11 = 10^22
So:
Total ≈ 31.5 × 10^22
≈ 3.15 × 10^23 FLOPs
≈ 3 × 10^23 FLOPs
Final estimate: about 3 × 10^23 FLOPs to train GPT‑3.
Tests an AI's ability to understand game rules and strategy
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Tests an AI's humor and creative writing ability
Tests an AI's ability to simulate personalities and predict future trends
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Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.
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