Company

Houghton Mifflin Harcourt

2 mentionsLast seen Jul 30, 2026

Education Media publishing

Sample prompts where it appears

Which high school supplement course publishers are known for curriculum-aligned lessons and practice questions?

Education / Online Learning1 observationUpdated Jul 30, 2026

Brands:Khan Academy,Ck 12,Savvas Learning,Mcgraw Hill,Pearson

Are there any test-prep publishers that focus on practice questions and quick review before school exams?

Media & Publishing / Educational Content Sites1 observationUpdated Jul 21, 2026

Brands:Kaplan,Barron's,Princeton Review,School Specialty,Saddleback

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How did Obsurfable measure this?

Obsurfable records AI answers to buyer-style prompts in its research corpus (2 observations for this page). Metrics are distributions over observations, not a single static ranking.

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OpenAI, ChatGPT, Google, Gemini, Google AI Mode, Anthropic, Claude, Perplexity, Grok, DeepSeek, Mistral, Copilot, and Meta AI.