ModelRefs / Text Embedding 3 Large vs o3 Pro
Text Embedding 3 Large vs o3 Pro
Text Embedding 3 Large vs o3 Pro: side-by-side benchmarks, pricing, context windows, coding ability and deployment. Pick the right model for your stack.
Overview
o3 Pro: o3 Pro is OpenAI's highest-capability reasoning model, applying extended compute at inference time to solve complex scientific, mathematical, and programming problems. It achieved the highest published scores on ARC-AGI-2 and competitive programming benchmarks at its June 2025 release.
Text Embedding 3 Large: Text Embedding 3 Large is OpenAI's larger third-generation embedding model, returning 3,072-dimension vectors from inputs of up to 8,192 tokens. Its dimensions parameter shortens the vector at creation time without, as OpenAI puts it, the embedding losing its concept-representing properties, which lets a retrieval system trade index size against accuracy without changing models. Shortening at creation is preferred to truncating afterwards, which requires re-normalising the vector.
Context window: o3 Pro accepts up to 200,000 tokens, Text Embedding 3 Large up to 8,191. Confirm the limit for your specific deployment channel before relying on it.
o3 Pro vs Text Embedding 3 Large at a glance
| Attribute | o3 Pro | Text Embedding 3 Large |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Released | 2025-06-10 | 2024-01-25 |
| Context window | 200,000 tokens | 8,191 tokens |
| Input price | $20/M tokens | $0.13/M tokens |
| Output price | $80/M tokens | Free / self-hosted |
| Licence | Proprietary | Proprietary |
| Self-hostable | No, hosted only | No, hosted only |
| Modalities | text, vision | text, Embedding |
Continue your research
Use these connected ModelRefs sections to compare alternatives, inspect implementation paths, and review the evidence and governance boundaries relevant to Text Embedding 3 Large vs o3 Pro.
Frequently asked questions
Which is better, Text Embedding 3 Large or o3 Pro?
Text Embedding 3 Large and o3 Pro target different workloads — see the benchmark and pricing tables for a side-by-side answer.
Is Text Embedding 3 Large cheaper than o3 Pro?
Compare $0.00013 vs $0.0200 on this page.