
GLM-5.3 Becomes First Model to Score 100% Across All Ed-o-meter Categories
GLM-5.3 has become the first model to achieve a 100% pass rate across all five categories on the Ed-o-meter leaderboard from Featherbench, outperforming models from Anthropic and OpenAI at a fraction of the cost. The open-weight model costs just $0.28 per full evaluation lap, compared to $1.43 for gpt-5.5, and is the first to earn green in all corners. Meanwhile, Anthropic's Claude series 5 models struggled due to provider-side blocks, and OpenAI's GPT-5.6 trio showed significant security weaknesses, failing most jailbreak attempts.