ModelRefs / Text Embedding 3 Large vs GPT-5
Text Embedding 3 Large vs GPT-5
Text Embedding 3 Large vs GPT-5: side-by-side benchmarks, pricing, context windows, coding ability and deployment. Pick the right model for your stack.
Overview
GPT-5: GPT-5 is OpenAI's August 2025 reasoning model for coding, reasoning, and agentic tasks. The API model supports text input and output, image input, configurable reasoning effort, and an immutable gpt-5-2025-08-07 snapshot; OpenAI now classifies it as a previous-generation model.
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: GPT-5 accepts up to 400,000 tokens, Text Embedding 3 Large up to 8,191. Confirm the limit for your specific deployment channel before relying on it.
GPT-5 vs Text Embedding 3 Large at a glance
| Attribute | GPT-5 | Text Embedding 3 Large |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Released | 2025-08-07 | 2024-01-25 |
| Context window | 400,000 tokens | 8,191 tokens |
| Input price | $1.25/M tokens | $0.13/M tokens |
| Output price | $10/M tokens | Free / self-hosted |
| Licence | Proprietary | Proprietary |
| Self-hostable | No, hosted only | No, hosted only |
| Modalities | text, vision | text, Embedding |
Where they differ most
- Cost Efficiency: GPT-5 47%, Text Embedding 3 Large 99%. Text Embedding 3 Large leads on this dimension.
- RAG Suitability: GPT-5 90%, Text Embedding 3 Large 86%. GPT-5 leads on this dimension.
Capability scores are ModelRefs' own derived signals, not vendor claims or benchmark results. Validate against your own workload before relying on them.
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 GPT-5.
Frequently asked questions
Which is better, Text Embedding 3 Large or GPT-5?
Text Embedding 3 Large and GPT-5 target different workloads — see the benchmark and pricing tables for a side-by-side answer.
Is Text Embedding 3 Large cheaper than GPT-5?
Compare $0.00013 vs $0.00125 on this page.