ModelRefs / DeepSeek R1 vs o3 Pro
DeepSeek R1 vs o3 Pro
DeepSeek R1 vs o3 Pro: side-by-side benchmarks, pricing, context windows, coding ability and deployment. Pick the right model for your stack.
Overview
DeepSeek R1: DeepSeek R1 is DeepSeek's open-source reasoning model, trained with reinforcement learning to produce chain-of-thought reasoning before answering. Released in January 2025 under the MIT license, it matched or exceeded closed reasoning models on several math and coding benchmarks.
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: DeepSeek R1 accepts up to 128,000 tokens, o3 Pro up to 200,000. Confirm the limit for your specific deployment channel before relying on it.
DeepSeek R1 vs o3 Pro at a glance
| Attribute | DeepSeek R1 | o3 Pro |
|---|---|---|
| Provider | DeepSeek | OpenAI |
| Released | 2025-01-20 | 2025-06-10 |
| Context window | 128,000 tokens | 200,000 tokens |
| Input price | $0.55/M tokens | $20/M tokens |
| Output price | $2.19/M tokens | $80/M tokens |
| Licence | MIT | Proprietary |
| Self-hostable | Yes, open weights | No, hosted only |
| Modalities | text | text, vision |
Where they differ most
- Reasoning: DeepSeek R1 75%, o3 Pro 32%. DeepSeek R1 leads on this dimension.
- Coding: DeepSeek R1 66%, 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 DeepSeek R1 vs o3 Pro.
Frequently asked questions
Which is better, DeepSeek R1 or o3 Pro?
DeepSeek R1 and o3 Pro target different workloads — see the benchmark and pricing tables for a side-by-side answer.
Is DeepSeek R1 cheaper than o3 Pro?
Compare $0.00055 vs $0.0200 on this page.