GPT/Fast / Budget

o3 Mini

o3 Mini is GPT's fastest and most affordable model, priced at $1.10/MTok input and $4.40/MTok output with a 200K context window. Backfilled on 2026-09-23. Prices confirmed by the provider pricing page and the LiteLLM cross-check. Release date not published in a machine-readable source. Not yet benchmarked, so never recommended.

Input $/MTok

$1.10

Output $/MTok

$4.40

Context window

200K

Cache read discount

50% off

o3 Mini pricing breakdown

RateInput $/MTokOutput $/MTok
Standard$1.10$4.40
Cached read (50% off input)$0.55-
Cached write (no surcharge)$1.10-
Batch (50% off)$0.55$2.20

All rates in USD per million tokens. Prices verified against provider documentation.

o3 Mini task benchmarks

Confidence scores (0-100) and cross-provider rank for each task type. Rank 1 is best across all 72 models.

Not benchmarked. The third-party benchmark source used for confidence scores does not cover GPT models yet. Scores will appear here once independent benchmarks are published.

o3 Mini cost by use case

Estimated cost per API call using default token counts for each workload.

Use caseInput tokensOutput tokensCost / call
Code Generation2,0004,000$0.0198
Unit Test Generation3,0005,000$0.0253
SQL Generation1,5001,000$0.006050
API Generation3,0006,000$0.0297
Code Refactoring4,0004,000$0.0220
Code Review5,0002,000$0.0143
PR Review8,0003,000$0.0220
Security Review6,0002,500$0.0176
Bug Detection5,0002,000$0.0143
Document Summarization10,0001,000$0.0154
PDF Summarization15,0001,500$0.0231
Meeting Notes8,0002,000$0.0176

Monthly cost projections

Projected monthly spend at different call volumes, using code generation as a representative workload (2,000 input / 4,000 output tokens per call).

Calls / monthWithout cachingWith caching (50% read discount)
1K$19.8$19.03
10K$198$190.3
100K$1,980$1,903
500K$9,900$9,515
1M$19,800$19,030

Caching estimate assumes 70% of input tokens are cache reads. Your actual cache hit rate will depend on prompt structure and reuse.

Fast / Budget alternatives to o3 Mini

Same-tier models from other providers, sorted by input price.

ModelProviderInput $/MTokOutput $/MTokInput savings
Gemini 2.5 Flash-LiteGemini$0.10$0.4091% cheaper
Gemini 3.1 Flash-LiteGemini$0.25$1.5077% cheaper
Gemini 3.5 Flash-LiteGemini$0.30$2.5073% cheaper
Gemini 2.5 FlashGemini$0.30$2.5073% cheaper
Gemini 3 FlashGemini$0.50$3.0055% cheaper
Gemini 3.6 FlashGemini$0.75$3.7532% cheaper
Gemini 3.7 FlashGemini$0.75$3.7532% cheaper
Gemini 3.8 FlashGemini$0.75$3.7532% cheaper
Claude Haiku 4.5Claude$1.00$5.009% cheaper
Gemini Robotics ER 2Gemini$1.00$5.009% cheaper
Grok Build 0.1Grok$1.00$2.009% cheaper
Gemini 2.5 Computer UseGemini$1.25$10.0014% more
Gemini 3.5 FlashGemini$1.50$9.0036% more
Gemini Omni 1.1 FlashGemini$1.50$9.0036% more
Gemini Omni FlashGemini$1.50$9.0036% more

Other GPT models

Track your o3 Mini spend

See exactly how much you spend on o3 Mini and where you can save. Two-line wrapper install, no API keys shared.