DeepSeek V4 Pro vs GPT-4o (11-20)
DeepSeek V4 Pro (2026) and GPT-4o (11-20) (2024) are frontier reasoning models from DeepSeek and OpenAI. DeepSeek V4 Pro ships a 1M-token context window, while GPT-4o (11-20) ships a 128K-token context window. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit. It focuses on practical selection signals rather than broad model-family marketing. The goal is to make the tradeoff clear before deeper testing.
DeepSeek V4 Pro fits 8x more tokens; pick it for long-context work and GPT-4o (11-20) for tighter calls.
Decision scorecard
Local evidence first| Signal | DeepSeek V4 Pro | GPT-4o (11-20) |
|---|---|---|
| Decision fit | Coding, RAG, and Agents | Coding, Agents, and Long context |
| Context window | 1M | 128K |
| Cheapest output | $0.87/1M tokens | - |
| Provider routes | 3 tracked | 0 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- DeepSeek V4 Pro has the larger context window for long prompts, retrieval packs, or transcript analysis.
- DeepSeek V4 Pro has broader tracked provider coverage for fallback and procurement flexibility.
- DeepSeek V4 Pro uniquely exposes Reasoning, Function calling, and Tool use in local model data.
- Local decision data tags DeepSeek V4 Pro for Coding, RAG, and Agents.
- GPT-4o (11-20) uniquely exposes Vision and Code execution in local model data.
- Local decision data tags GPT-4o (11-20) for Coding, Agents, and Long context.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output prices on this page.
DeepSeek V4 Pro
$566
Cheapest tracked route: DeepSeek Platform
GPT-4o (11-20)
Unavailable
No complete token price in local provider data
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for DeepSeek V4 Pro and GPT-4o (11-20); plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Reasoning, Function calling, and Tool use before moving production traffic.
- GPT-4o (11-20) adds Vision and Code execution in local capability data.
- No overlapping tracked provider route is sourced for GPT-4o (11-20) and DeepSeek V4 Pro; plan for SDK, billing, or endpoint changes.
- Check replacement coverage for Vision and Code execution before moving production traffic.
- DeepSeek V4 Pro adds Reasoning, Function calling, and Tool use in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-04-24 | 2024-11-20 |
| Context window | 1M | 128K |
| Parameters | 1.6T | 1.76T (8x222B MoE)* |
| Architecture | mixture of experts | mixture of experts |
| License | MIT | Proprietary |
| Knowledge cutoff | - | 2023-10 |
Pricing and availability
| Pricing attribute | DeepSeek V4 Pro | GPT-4o (11-20) |
|---|---|---|
| Input price | $0.43/1M tokens | - |
| Output price | $0.87/1M tokens | - |
| Providers | - |
Capabilities
| Capability | DeepSeek V4 Pro | GPT-4o (11-20) |
|---|---|---|
| Vision | No | Yes |
| Multimodal | No | No |
| Reasoning | Yes | No |
| Function calling | Yes | No |
| Tool use | Yes | No |
| Structured outputs | Yes | No |
| Code execution | No | Yes |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on vision: GPT-4o (11-20), reasoning mode: DeepSeek V4 Pro, function calling: DeepSeek V4 Pro, tool use: DeepSeek V4 Pro, structured outputs: DeepSeek V4 Pro, and code execution: GPT-4o (11-20). Both models share the core language-model surface, 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.
Pricing coverage is uneven: DeepSeek V4 Pro has $0.43/1M input tokens and GPT-4o (11-20) has no token price sourced yet. Provider availability is 3 tracked routes versus 0. Treat unknown pricing as an integration gap, then verify the route you will actually call before estimating production spend.
Choose DeepSeek V4 Pro when reasoning depth, larger context windows, and broader provider choice are central to the workload. Choose GPT-4o (11-20) 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. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions. It also helps separate model capability from provider packaging, which can change cost and latency.
FAQ
Which has a larger context window, DeepSeek V4 Pro or GPT-4o (11-20)?
DeepSeek V4 Pro supports 1M tokens, while GPT-4o (11-20) supports 128K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Is DeepSeek V4 Pro or GPT-4o (11-20) open source?
DeepSeek V4 Pro is listed under MIT. GPT-4o (11-20) 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 vision, DeepSeek V4 Pro or GPT-4o (11-20)?
GPT-4o (11-20) has the clearer documented vision signal in this comparison. If vision is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Which is better for reasoning mode, DeepSeek V4 Pro or GPT-4o (11-20)?
DeepSeek V4 Pro has the clearer documented reasoning mode signal in this comparison. If reasoning mode is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for function calling, DeepSeek V4 Pro or GPT-4o (11-20)?
DeepSeek V4 Pro has the clearer documented function calling signal in this comparison. If function calling is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run DeepSeek V4 Pro and GPT-4o (11-20)?
DeepSeek V4 Pro is available on DeepSeek Platform, Fireworks AI, and OpenRouter. GPT-4o (11-20) is available on the tracked providers still being sourced. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-05-14. Data sourced from public model cards and provider documentation.