DeepSeek V4 Pro vs Phi-3 Mini 4k
DeepSeek V4 Pro (2026) and Phi-3 Mini 4k (2024) are frontier reasoning models from DeepSeek and Microsoft Research. DeepSeek V4 Pro ships a 1m-token context window, while Phi-3 Mini 4k ships a 4k-token context window. On MMLU PRO, DeepSeek V4 Pro leads by 41.8 pts. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Phi-3 Mini 4k is ~770% cheaper at $0.05/1M; pay for DeepSeek V4 Pro only for reasoning depth.
Decision scorecard
Local evidence first| Signal | DeepSeek V4 Pro | Phi-3 Mini 4k |
|---|---|---|
| Best for | reasoning-heavy apps, tool-calling agents, and long-context analysis | provider-routed production |
| Decision fit | Coding, RAG, and Agents | Coding and Classification |
| Context window | 1m | 4k |
| Cheapest output | $0.87/1M tokens | $0.25/1M tokens |
| Provider routes | 5 tracked | 4 tracked |
| Shared benchmarks | MMLU PRO leader | 4 shared |
Decision tradeoffs
- DeepSeek V4 Pro holds a shared-benchmark lead on MMLU PRO, ahead by 41.8 points.
- 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 route flexibility.
- DeepSeek V4 Pro uniquely exposes Reasoning, JSON / Tool use, and Structured outputs in local model data.
- Local decision data tags DeepSeek V4 Pro for Coding, RAG, and Agents.
- Phi-3 Mini 4k has the lower cheapest tracked output price at $0.25/1M tokens.
- Local decision data tags Phi-3 Mini 4k for Coding and Classification.
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
Phi-3 Mini 4k
$103
Cheapest tracked route/tier: Replicate API
Estimated monthly gap: $463. 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 V4 Pro and Phi-3 Mini 4k; plan for SDK, billing, or endpoint changes.
- Phi-3 Mini 4k is $0.62/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Reasoning, JSON / Tool use, and Structured outputs before moving production traffic.
- No overlapping tracked provider route is sourced for Phi-3 Mini 4k and DeepSeek V4 Pro; plan for SDK, billing, or endpoint changes.
- DeepSeek V4 Pro is $0.62/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- DeepSeek V4 Pro adds Reasoning, JSON / Tool use, and Structured outputs in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-04-24 | 2024-04-23 |
| Context window | 1m | 4k |
| Parameters | 1.6T | 3.8B |
| Architecture | Mixture of Experts | Decoder Only |
| License | MITOSI-approved | MITOSI-approved |
| Openness | Open source | Open source |
| Weights | Available | Unknown |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: permitted | Commercial use: permitted |
| Knowledge cutoff | - | 2023-10 |
Pricing and availability
| Pricing attribute | DeepSeek V4 Pro | Phi-3 Mini 4k |
|---|---|---|
| Input price | $0.43/1M tokens | $0.05/1M tokens |
| Output price | $0.87/1M tokens | $0.25/1M tokens |
| Providers |
Capabilities
| Capability | DeepSeek V4 Pro | Phi-3 Mini 4k |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | Yes | No |
| JSON / Tool use | Yes | No |
| Structured outputs | Yes | No |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
| Benchmark | DeepSeek V4 Pro | Phi-3 Mini 4k |
|---|---|---|
| MMLU PRO | 87.5 | 45.7 |
| Google-Proof Q&A | 90.1 | 40.9 |
| HumanEval | 76.8 | 59.8 |
| Massive Multitask Language Understanding | 90.1 | 68.2 |
Continue comparing
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Last reviewed: 2026-06-29. Data sourced from public model cards and provider documentation.