DeepSeek R1 0528 vs o1 (12-17)
DeepSeek R1 0528 (2025) and o1 (12-17) (2024) are frontier-tier reasoning models from DeepSeek and OpenAI. DeepSeek R1 0528 ships a 130k-token context window, while o1 (12-17) ships a 128k-token context window. On Google-Proof Q&A, DeepSeek R1 0528 leads by 3 pts. On pricing, DeepSeek R1 0528 costs $0.50/1M input tokens versus $15/1M 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 ~2900% cheaper at $0.50/1M; pay for o1 (12-17) only for coding workflow support.
Decision scorecard
Local evidence first| Signal | DeepSeek R1 0528 | o1 (12-17) |
|---|---|---|
| Best for | reasoning-heavy apps and provider-routed production | reasoning-heavy apps and provider-routed production |
| Decision fit | Coding, RAG, and Agents | Coding, Agents, and Long context |
| Context window | 130k | 128k |
| Cheapest output | $2.15/1M tokens | $60/1M tokens |
| Provider routes | 7 tracked | 2 tracked |
| Shared benchmarks | Google-Proof Q&A leader | 1 shared |
Decision tradeoffs
- DeepSeek R1 0528 holds a shared-benchmark lead on Google-Proof Q&A, ahead by 3 points.
- DeepSeek R1 0528 has the larger context window for long prompts, retrieval packs, or transcript analysis.
- 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 procurement flexibility.
- DeepSeek R1 0528 uniquely exposes Structured outputs in local model data.
- Local decision data tags o1 (12-17) for Coding, 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
o1 (12-17)
$27,000
Cheapest tracked route/tier: Replicate API
Estimated monthly gap: $26,063. 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 o1 (12-17); plan for SDK, billing, or endpoint changes.
- o1 (12-17) is $57.85/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Structured outputs before moving production traffic.
- No overlapping tracked provider route is sourced for o1 (12-17) and DeepSeek R1 0528; plan for SDK, billing, or endpoint changes.
- DeepSeek R1 0528 is $57.85/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- DeepSeek R1 0528 adds Structured outputs in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-05-28 | 2024-12-17 |
| Context window | 130k | 128k |
| Parameters | 685B total, 37B active (MoE) | — |
| Architecture | Decoder Only | Decoder Only |
| License | MITOSI-approved | Proprietary |
| Openness | Open source | Proprietary |
| Commercial use | Commercial use: permitted | Commercial use: conditional |
| Knowledge cutoff | - | - |
Pricing and availability
| Pricing attribute | DeepSeek R1 0528 | o1 (12-17) |
|---|---|---|
| Input price | $0.50/1M tokens | $15/1M tokens |
| Output price | $2.15/1M tokens | $60/1M tokens |
| Providers |
Capabilities
| Capability | DeepSeek R1 0528 | o1 (12-17) |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | Yes | Yes |
| Function calling | No | No |
| Tool use | No | No |
| Structured outputs | Yes | No |
| Code execution | Yes | Yes |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
| Benchmark | DeepSeek R1 0528 | o1 (12-17) |
|---|---|---|
| Google-Proof Q&A | 81.0 | 78.0 |
Deep dive
On shared benchmark coverage, Google-Proof Q&A has DeepSeek R1 0528 at 81 and o1 (12-17) at 78, with DeepSeek R1 0528 ahead by 3 points. The largest visible gap is 3 points on Google-Proof Q&A, which matters most when that benchmark mirrors your workload. Treat isolated benchmark wins as directional, because provider routing, prompt style, and tool access can move real application results.
The capability footprint differs most on structured outputs: DeepSeek R1 0528. Both models share reasoning mode and code execution, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
For cost, DeepSeek R1 0528 lists $0.50/1M input and $2.15/1M output tokens on the cheapest tracked provider, while o1 (12-17) lists $15/1M input and $60/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts DeepSeek R1 0528 lower by about $27.50 per million blended tokens. Availability is 7 providers versus 2, so concentration risk also matters.
Choose DeepSeek R1 0528 when coding workflow support, larger context windows, and lower input-token cost are central to the workload. Choose o1 (12-17) when coding workflow support are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship.
FAQ
Which has a larger context window, DeepSeek R1 0528 or o1 (12-17)?
DeepSeek R1 0528 supports 130k tokens, while o1 (12-17) supports 128k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, DeepSeek R1 0528 or o1 (12-17)?
DeepSeek R1 0528 is cheaper on tracked token pricing. DeepSeek R1 0528 costs $0.50/1M input and $2.15/1M output tokens. o1 (12-17) costs $15/1M input and $60/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is DeepSeek R1 0528 or o1 (12-17) open source?
DeepSeek R1 0528 is listed under MIT. o1 (12-17) is listed under Proprietary. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for reasoning mode, DeepSeek R1 0528 or o1 (12-17)?
Both DeepSeek R1 0528 and o1 (12-17) expose reasoning mode. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Which is better for structured outputs, DeepSeek R1 0528 or o1 (12-17)?
DeepSeek R1 0528 has the clearer documented structured outputs signal in this comparison. If structured outputs is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run DeepSeek R1 0528 and o1 (12-17)?
DeepSeek R1 0528 is available on Together AI, Fireworks AI, GCP Vertex AI, Novita AI, and OpenRouter. o1 (12-17) is available on Replicate API and OpenAI API. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-06-15. Data sourced from public model cards and provider documentation.