DeepSeek V4 Pro vs o3
DeepSeek V4 Pro (2026) and o3 (2025) are frontier-tier reasoning models from DeepSeek and OpenAI. DeepSeek V4 Pro ships a 1m-token context window, while o3 ships a 200k-token context window. On SWE-bench Verified, DeepSeek V4 Pro leads by 8.9 pts. On pricing, DeepSeek V4 Pro costs $0.43/1M input tokens versus $2/1M 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 V4 Pro is ~360% cheaper at $0.43/1M; pay for o3 only for coding workflow support.
Decision scorecard
Local evidence first| Signal | DeepSeek V4 Pro | o3 |
|---|---|---|
| Best for | reasoning-heavy apps, tool-calling agents, and long-context analysis | reasoning-heavy apps, multimodal apps, and tool-calling agents |
| Decision fit | Coding, RAG, and Agents | Coding, RAG, and Agents |
| Context window | 1m | 200k |
| Cheapest output | $0.87/1M tokens | $8/1M tokens |
| Provider routes | 5 tracked | 3 tracked |
| Shared benchmarks | SWE-bench Verified leader | 6 shared |
Decision tradeoffs
- DeepSeek V4 Pro holds a shared-benchmark lead on SWE-bench Verified, ahead by 8.9 points.
- DeepSeek V4 Pro has the larger context window for long prompts, retrieval packs, or transcript analysis.
- DeepSeek V4 Pro has the lower cheapest tracked output price at $0.87/1M tokens.
- DeepSeek V4 Pro has broader tracked provider coverage for fallback and route flexibility.
- Local decision data tags DeepSeek V4 Pro for Coding, RAG, and Agents.
- o3 holds a shared-benchmark lead on HumanEval, ahead by 19.9 points.
- o3 uniquely exposes Vision, Multimodal, and Code execution in local model data.
- Local decision data tags o3 for Coding, RAG, and Agents.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
DeepSeek V4 Pro
$566
Cheapest tracked route/tier: DeepSeek Platform
o3
$3,600
Cheapest tracked route/tier: OpenAI API
Estimated monthly gap: $3,035. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on OpenRouter and Vercel AI Gateway; start route-level A/B tests there.
- o3 is $7.13/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- o3 adds Vision, Multimodal, and Code execution in local capability data.
- Provider overlap exists on OpenRouter and Vercel AI Gateway; start route-level A/B tests there.
- DeepSeek V4 Pro is $7.13/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Vision, Multimodal, and Code execution before moving production traffic.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-04-24 | 2025-04-16 |
| Context window | 1m | 200k |
| Parameters | 1.6T | — |
| Architecture | Mixture of Experts | Decoder Only |
| License | MITOSI-approved | Proprietary |
| Openness | Open source | Proprietary |
| Weights | Available | Not released |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: permitted | Commercial use: conditional |
| Knowledge cutoff | - | 2024-06 |
Pricing and availability
| Pricing attribute | DeepSeek V4 Pro | o3 |
|---|---|---|
| Input price | $0.43/1M tokens | $2/1M tokens |
| Output price | $0.87/1M tokens | $8/1M tokens |
| Providers |
Capabilities
| Capability | DeepSeek V4 Pro | o3 |
|---|---|---|
| Vision | No | Yes |
| Multimodal | No | Yes |
| Reasoning | Yes | Yes |
| JSON / Tool use | Yes | Yes |
| Structured outputs | Yes | Yes |
| Code execution | No | Yes |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
| Benchmark | DeepSeek V4 Pro | o3 |
|---|---|---|
| SWE-bench Verified | 80.6 | 71.7 |
| Google-Proof Q&A | 90.1 | 87.7 |
| LiveCodeBench | 93.5 | 85.5 |
| Humanity's Last Exam | 37.7 | 20.3 |
| HumanEval | 76.8 | 96.7 |
| Chatbot Arena | 1456.0 | 1412.0 |
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Last reviewed: 2026-06-29. Data sourced from public model cards and provider documentation.