A 2025 evaluation by Anthropic measured political 'evenhandedness' and scored Google's Gemini 2.5 Pro at 97%, Grok 4 at 96%, Anthropic's Claude Sonnet 4.5 and Opus 4.1 at 95%, OpenAI's GPT-5 at 89%, and Meta's Llama 4 at 66%.
November 14, 2025
high
temporal
Reported model-level evenhandedness scores from Anthropic's automated evaluation method.