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DeepSeek vs o3-mini

DeepSeek 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

AttributeDeepSeeko3-mini
Product statusStatus not recordedActive
VendorDeepSeekOpenAI
Rating★ 4.7★ 4.6
PricingPay-as-you-goPay-as-you-go
PlatformsWeb, iOS, Android, APIAPI
Key featuresHosted web and mobile chat, Separately metered developer API, Published model change logText input and output, 200K context; up to 100K output tokens, Function calling and structured outputs
Headquarters——
Launched——
Open sourceNoNo

Key differences

  • DeepSeek carries the higher editorial score (4.7★ vs 4.6★).
  • Both DeepSeek and o3-mini use a Pay-as-you-go model.
  • DeepSeek runs on Web, iOS, Android, API; o3-mini runs on API.

DeepSeek and o3-mini at a glance

DeepSeek

DeepSeek

DeepSeek's hosted chat and separately metered developer API; service terms, model versions and public model licenses must be checked separately.

Rating
4.7★
Pricing
Pay-as-you-go

Editorial verdict

Evaluate the hosted service or API you will actually use; verify model IDs, billing and data terms instead of treating the brand as a free, open-source R1 deployment.

Strengths

  • Separate hosted-chat and developer-API entry points
  • Public model/version change log
  • Published cache and time-dependent API billing conditions

Key features

  • Hosted web and mobile chat
  • Separately metered developer API
  • Published model change log
  • Cache and time-dependent API pricing

Best for

  • Comparing chat and API adoption paths
  • Planning token-cost estimates for a named API model
  • Tracking model changes before a controlled evaluation
Read the full DeepSeek 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 also lists: Hosted web and mobile chat, Separately metered developer API, Published model change log, Cache and time-dependent API pricing
  • 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 or o3-mini better?

By editorial score, DeepSeek scores higher (4.7★ vs 4.6★). Both are capable Conversational AI tools, so review the feature comparison for your use case.

Which is cheaper, DeepSeek or o3-mini?

Both DeepSeek and o3-mini use a Pay-as-you-go pricing model.

Are DeepSeek and o3-mini open source?

No — neither DeepSeek nor o3-mini is open source.

What platforms do DeepSeek and o3-mini support?

DeepSeek supports Web, iOS, Android, API; o3-mini supports API.

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

DeepSeek: Hosted web and mobile chat, Separately metered developer API, Published model change log, Cache and time-dependent API pricing. 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 →Visit o3-mini →

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