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DeepSeek R1 vs o3-mini

DeepSeek R1 and o3-mini are both Conversational AI tools in our directory. This side-by-side comparison covers pricing, editorial scores, supported platforms, key features and open-source status so you can decide which one fits your needs.

Side-by-side comparison

AttributeDeepSeek R1o3-mini
Product statusStatus not recordedActive
VendorDeepSeekOpenAI
Rating★ 4.6★ 4.6
PricingFreePay-as-you-go
PlatformsSelf-hosted, Model weightsAPI
Key featuresDownloadable R1 weights, Reasoning-text generation, Separate Qwen/Llama-derived distilled variantsText input and output, 200K context; up to 100K output tokens, Function calling and structured outputs
Headquarters——
Launched——
Open sourceYesNo

Key differences

  • DeepSeek R1 and o3-mini carry the same editorial score (4.6★).
  • DeepSeek R1 is Free, while o3-mini is Pay-as-you-go.
  • DeepSeek R1 is open source (its code is public), while o3-mini is proprietary.
  • DeepSeek R1 runs on Self-hosted, Model weights; o3-mini runs on API.

DeepSeek R1 and o3-mini at a glance

DeepSeek R1

DeepSeek

DeepSeek's original downloadable R1 reasoning model and related distilled checkpoints, with model-specific licenses and self-managed computing costs.

Rating
4.6★
Pricing
Free

Editorial verdict

Consider the original R1 weights when you can evaluate outputs and operate the required stack; confirm any hosted R1 offer separately.

Strengths

  • Original model code/weights are published
  • Checkpoint and prompting guidance

Key features

  • Downloadable R1 weights
  • Reasoning-text generation
  • Separate Qwen/Llama-derived distilled variants

Best for

  • Reviewed reasoning or code experiments
  • Evaluating a specifically licensed checkpoint
Read the full DeepSeek R1 review →

o3-mini

OpenAI

OpenAI's deprecated text reasoning API model; o3-mini and its 2025-01-31 snapshot are scheduled to shut down on 2026-10-23.

Rating
4.6★
Pricing
Pay-as-you-go

Editorial verdict

As of 2026-10-15, o3-mini is deprecated with shutdown scheduled for 2026-10-23. Prioritize migration of existing integrations and use a supported model for new projects.

Strengths

  • Documented structured-output and function interfaces
  • Dated snapshot and shutdown schedule are explicit

Key features

  • Text input and output
  • 200K context; up to 100K output tokens
  • Function calling and structured outputs
  • No image, audio or video input

Best for

  • Inventorying an existing o3-mini integration
  • Preparing schema and tool cases for a replacement
  • Interpreting earlier token-cost records
Read the full o3-mini review →

Feature overlap

  • The two tools have no listed features in common — see both feature lists above.
  • DeepSeek R1 also lists: Downloadable R1 weights, Reasoning-text generation, Separate Qwen/Llama-derived distilled variants
  • o3-mini also lists: Text input and output, 200K context; up to 100K output tokens, Function calling and structured outputs, No image, audio or video input

Frequently asked questions

Is DeepSeek R1 or o3-mini better?

DeepSeek R1 and o3-mini carry the same editorial score (4.6★), so the better choice depends on your needs — see the feature and platform comparison above.

Which is cheaper, DeepSeek R1 or o3-mini?

DeepSeek R1 is Free and o3-mini is Pay-as-you-go. Check each product page for current plan details.

Are DeepSeek R1 and o3-mini open source?

DeepSeek R1 is open source, while o3-mini is proprietary.

What platforms do DeepSeek R1 and o3-mini support?

DeepSeek R1 supports Self-hosted, Model weights; o3-mini supports API.

What are the main features of DeepSeek R1 and o3-mini?

DeepSeek R1: Downloadable R1 weights, Reasoning-text generation, Separate Qwen/Llama-derived distilled variants. o3-mini: Text input and output, 200K context; up to 100K output tokens, Function calling and structured outputs, No image, audio or video input.

Visit DeepSeek R1 →Visit o3-mini →

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