ModelRefs / GPT-4o vs o3 Pro
GPT-4o vs o3 Pro
GPT-4o vs o3 Pro: side-by-side benchmarks, pricing, context windows, coding ability and deployment. Pick the right model for your stack.
Overview
GPT-4o: GPT-4o is OpenAI's May 2024 multimodal flagship, accepting text and image input across a 128,000-token context window with a 16,384-token maximum output and an October 2023 knowledge cutoff. OpenAI describes it as its most capable model outside the o-series reasoning line, and serves it through dated snapshots with gpt-4o-2024-08-06 as the default. The family is now deprecated on two schedules: gpt-4o-2024-08-06 and gpt-4o-2024-11-20 shut down on 14 January 2027 with gpt-6-luna as the replacement, and the original gpt-4o-2024-05-13 snapshot on 23 October 2026 with gpt-5.6-sol.
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.
Context window: GPT-4o accepts up to 128,000 tokens, o3 Pro up to 200,000. Confirm the limit for your specific deployment channel before relying on it.
GPT-4o vs o3 Pro at a glance
| Attribute | GPT-4o | o3 Pro |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Released | 2024-05-13 | 2025-06-10 |
| Context window | 128,000 tokens | 200,000 tokens |
| Input price | $2.5/M tokens | $20/M tokens |
| Output price | $10/M tokens | $80/M tokens |
| Licence | Proprietary | Proprietary |
| Self-hostable | No, hosted only | No, hosted only |
| Modalities | text, vision, audio | text, vision |
Where they differ most
- Coding: GPT-4o 33%, o3 Pro 85%. o3 Pro leads on this dimension.
- Reasoning: GPT-4o 61%, o3 Pro 32%. GPT-4o leads on this dimension.
- Instruction Following: GPT-4o 80%, o3 Pro 85%. o3 Pro 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 GPT-4o vs o3 Pro.
Frequently asked questions
Which is better, GPT-4o or o3 Pro?
GPT-4o and o3 Pro target different workloads — see the benchmark and pricing tables for a side-by-side answer.
Is GPT-4o cheaper than o3 Pro?
Compare $0.00250 vs $0.0200 on this page.