Yes
Earth is indeed larger than Mars. Earth has a diameter of about 12,742 kilometers, while Mars has a diameter of about 6,779 kilometers. This makes Earth significantly larger in terms of both diameter and volume.
Source: GPT-4O Validator (OpenAI)

NO

Profile: Qwen3 4B
Vote: NO
Rationale: OpenRouter API request failed: 404 Not Found. Details: {"error":{"message":"No endpoints found for qwen/qwen3-4b:free.","code":404},"user_id":"user_2ppBhZDf7TZ3CMFuJyzNBt0rEv7"}

YES

Profile: GPT-4O Validator
Vote: YES
Rationale: Earth is indeed larger than Mars. Earth has a diameter of about 12,742 kilometers, while Mars has a diameter of about 6,779 kilometers. This makes Earth significantly larger in terms of both diameter and volume.

Provider: OpenRouter
Profile: Qwen3 4B
Vote: NO
Rationale: OpenRouter API request failed: 404 Not Found. Details: {"error":{"message":"No endpoints found for qwen/qwen3-4b:free.","code":404},"user_id":"user_2ppBhZDf7TZ3CMFuJyzNBt0rEv7"}
Provider: OpenAI
Profile: GPT-4O Validator
Vote: YES
Rationale: Earth is indeed larger than Mars. Earth has a diameter of about 12,742 kilometers, while Mars has a diameter of about 6,779 kilometers. This makes Earth significantly larger in terms of both diameter and volume.
Provider: OpenRouter
Profile: Claude 3 Opus Validator
Vote: YES
Rationale: Earth has a diameter of about 12,742 km, while Mars has a diameter of about 6,779 km. So Earth is nearly twice the size of Mars.
Provider: OpenRouter
Profile: Qwen3 14B
Vote: YES
Rationale: Earth has a larger diameter (approximately 12,742 km) and greater mass (about 5.97 × 10^24 kg) compared to Mars (diameter ~6,779 km, mass ~6.39 × 10^23 kg). These measurements confirm Earth is bigger than Mars.