DeepSeek R1 0528 vs o3 Deep Research
DeepSeek R1 0528 (2025) and o3 Deep Research (2025) are frontier-tier reasoning models from DeepSeek and OpenAI. DeepSeek R1 0528 ships a 130k-token context window, while o3 Deep Research ships a 200k-token context window. On pricing, DeepSeek R1 0528 costs $0.50/1M input tokens versus $10/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
DeepSeek R1 0528 is ~1900% cheaper at $0.50/1M; pay for o3 Deep Research only for long-context analysis.
Decision scorecard
Local evidence first| Signal | DeepSeek R1 0528 | o3 Deep Research |
|---|---|---|
| Best for | reasoning-heavy apps and provider-routed production | reasoning-heavy apps, multimodal apps, and tool-calling agents |
| Decision fit | Coding, RAG, and Agents | RAG, Agents, and Long context |
| Context window | 130k | 200k |
| Cheapest output | $2.15/1M tokens | $40/1M tokens |
| Provider routes | 7 tracked | 2 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- DeepSeek R1 0528 has the lower cheapest tracked output price at $2.15/1M tokens.
- DeepSeek R1 0528 has broader tracked provider coverage for fallback and route flexibility.
- DeepSeek R1 0528 uniquely exposes Code execution in local model data.
- Local decision data tags DeepSeek R1 0528 for Coding, RAG, and Agents.
- o3 Deep Research has the larger context window for long prompts, retrieval packs, or transcript analysis.
- o3 Deep Research uniquely exposes Vision, Multimodal, and JSON / Tool use in local model data.
- Local decision data tags o3 Deep Research for RAG, Agents, and Long context.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
DeepSeek R1 0528
$938
Cheapest tracked route/tier: OpenRouter
o3 Deep Research
$18,000
Cheapest tracked route/tier: Vercel AI Gateway
Estimated monthly gap: $17,063. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- No overlapping tracked provider route is sourced for DeepSeek R1 0528 and o3 Deep Research; plan for SDK, billing, or endpoint changes.
- o3 Deep Research is $37.85/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Code execution before moving production traffic.
- o3 Deep Research adds Vision, Multimodal, and JSON / Tool use in local capability data.
- No overlapping tracked provider route is sourced for o3 Deep Research and DeepSeek R1 0528; plan for SDK, billing, or endpoint changes.
- DeepSeek R1 0528 is $37.85/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Vision, Multimodal, and JSON / Tool use before moving production traffic.
- DeepSeek R1 0528 adds Code execution in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-05-28 | 2025-10-10 |
| Context window | 130k | 200k |
| Parameters | 685B total, 37B active (MoE) | — |
| Architecture | Decoder Only | Decoder Only |
| License | MITOSI-approved | Proprietary |
| Openness | Open source | Proprietary |
| Weights | Unknown | Not released |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: permitted | Commercial use: conditional |
| Knowledge cutoff | - | 2024-06 |
Pricing and availability
| Pricing attribute | DeepSeek R1 0528 | o3 Deep Research |
|---|---|---|
| Input price | $0.50/1M tokens | $10/1M tokens |
| Output price | $2.15/1M tokens | $40/1M tokens |
| Providers |
Capabilities
| Capability | DeepSeek R1 0528 | o3 Deep Research |
|---|---|---|
| Vision | No | Yes |
| Multimodal | No | Yes |
| Reasoning | Yes | Yes |
| JSON / Tool use | No | Yes |
| Structured outputs | Yes | Yes |
| Code execution | Yes | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark scores are currently available for this pair.
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Last reviewed: 2026-06-29. Data sourced from public model cards and provider documentation.