GPT-5 vs Gemini 2.5 Pro
GPT-5 for reasoning-intensive tasks; Gemini for long-context and native video.
GPT-5
OpenAI's reasoning-first flagship. Native chain-of-thought, three reasoning-effort tiers, the highest published benchmark scores at release.
Use this when
Hard math, reasoning chains, benchmark-critical tasks.
Full profile →Gemini 2.5 Pro
Google's reasoning flagship. Two-million-token context, native multimodal, the only frontier model that reads PDFs without an extraction pre-pass.
Use this when
2M-token documents, video analysis, multimodal pipelines.
Full profile →Cost comparison
GPT-5 variable by effort; Gemini $1.25/$10 per M (doubles past 200K).