o4 Mini Deep Research vs all-mpnet-base-v2: side-by-side summary

o4 Mini Deep Research and all-mpnet-base-v2 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

o4 Mini Deep Research, from OpenAI, has a 200,000-token context window and is priced by the provider serving it on OpenRouter.

all-mpnet-base-v2, from sentence-transformers, has a 512-token context window and is priced at $0.005/M tokens on OpenRouter.

Context window

• o4 Mini Deep Research: 200,000 tokens
• all-mpnet-base-v2: 512 tokens

Price

• o4 Mini Deep Research: Pricing varies by provider
• all-mpnet-base-v2: $0.005/M tokens

Provided by

• o4 Mini Deep Research: OpenAI
• all-mpnet-base-v2: sentence-transformers

• o4 Mini Deep Research model details, providers and pricing
• all-mpnet-base-v2 model details, providers and pricing