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OpenAI's Deep Research model and limits questioned by users

A user on Reddit is inquiring about the underlying model powering OpenAI's "Deep Research" feature and its associated usage limits. The user specifically asks if "o3" is still the model in use and if the "25/250 deep research count" for Plus/Pro plans remains unchanged. Customer service has reportedly not provided a definitive answer. AI

IMPACT Uncertainty regarding the specific model powering OpenAI's 'Deep Research' feature may affect user expectations and usage patterns.

RANK_REASON User inquiry about a product feature and its underlying model, lacking official confirmation or new information.

Read on r/OpenAI →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

OpenAI's Deep Research model and limits questioned by users

How we ranked this

Signal score
0 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Commentary
User inquiry about a product feature and its underlying model, lacking official confirmation or new information.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
product, other
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
68 days old
Aged out of breaking-news scoring windows; ranking reflects the durable signal from the full source set.

Full methodology in our editorial standards.

COVERAGE [1]

  1. r/OpenAI TIER_2 English(EN) · /u/Menthol-Cooking5842 ·

    Is Deep Research still powered by o3?

    <!-- SC_OFF --><div class="md"><p>Customer service wont give a real answer about that, not even about the deep research limit. The last article about this on OAI website is from 2025 april.</p> <p>Is the deep research is still powered by o3 model?<br /> We still got that 25/250 d…