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o3-mini

by OpenAI · Text & Chat · Code

Fast reasoning model with deep thinking.

91/100AIVerso score
#15 of 49in Text & Chat
API pay-per-useStarting price
NoFree tier
Try o3-mini →Compare with alternatives →

At a glance

ProviderOpenAI
CategoryText & Chat, Code
Starting priceAPI pay-per-use
Pricing detailsFrom $20/mo
Free tierNo
API accessYes
Open sourceNo
Context window200K tokens
Mobile appiOS & Android

Key facts

Capability ratings

Math & Logice.g. AIME, MATH-500
88
Programminge.g. SWE-bench, LiveCodeBench
76
Reasoninge.g. GPQA, ARC
84
Knowledgee.g. MMLU-Pro
78
Long Contexte.g. MRCR, needle tests
75
Instruction Followinge.g. IFEval
85
Agent Capabilitye.g. Terminal-Bench, tool use
68

AIVerso capability ratings (0–100), an editorial summary informed by public benchmark results. Higher is better.

Strengths

Large 200K token context window
API access for developers
iOS & Android apps

Limitations

No free tier
Closed model — cannot be self-hosted

Best alternatives to o3-mini

Claude Fable 5.1
Anthropic · $10/$50 per 1M tokens — Higher score (99 vs 91)
99
Fugu Ultra v2
Sakana AI · $5/$30 per 1M tokens — Higher score (97 vs 91)
97
Gemini 3.1 Pro
Google · Free – $20/mo · free tier — Higher score (96 vs 91)
96
MiMo-V2.6-Pro
Xiaomi · Free (open weights) · $0.44/$0.87 per 1M · free tier — Higher score (96 vs 91)
96
Kimi K3
Moonshot AI · Free – API · free tier — Higher score (96 vs 91)
96

🔗 Comparisons & guides

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❓ Frequently Asked Questions

Is o3-mini free?

No, o3-mini has no free tier. Pricing: API pay-per-use (details: From $20/mo).

What are the best alternatives to o3-mini?

The highest-rated AI chatbots & text models from other providers on AIVerso are Claude Fable 5.1 (99/100), Fugu Ultra v2 (97/100), Gemini 3.1 Pro (96/100).

Does o3-mini have an API?

Yes, o3-mini can be used via an API.

Is o3-mini open source?

No, o3-mini is a closed, proprietary model from OpenAI.

How does AIVerso rate o3-mini?

o3-mini scores 91/100 on AIVerso and ranks #15 of 49 in Text & Chat. Scores combine public benchmark results, features and pricing; commissions never influence them.

How we rate: Scores and capability ratings are based on public benchmarks, provider documentation, features and pricing — not on commission rates. Prices can change; check the provider's site before buying. Last updated: September 29, 2026.