GPT/Fast / Budget

GPT 4.1 Nano

GPT 4.1 Nano is GPT's fastest and most affordable model, priced at $0.10/MTok input and $0.40/MTok output with a 1,047.576K 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

$0.10

Output $/MTok

$0.40

Context window

1,047.576K

Cache read discount

75% off

GPT 4.1 Nano pricing breakdown

RateInput $/MTokOutput $/MTok
Standard$0.10$0.40
Cached read (75% off input)$0.03-
Cached write (no surcharge)$0.10-
Batch (50% off)$0.05$0.20

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

GPT 4.1 Nano 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.

GPT 4.1 Nano 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$0.001800
Unit Test Generation3,0005,000$0.002300
SQL Generation1,5001,000$0.000550
API Generation3,0006,000$0.002700
Code Refactoring4,0004,000$0.002000
Code Review5,0002,000$0.001300
PR Review8,0003,000$0.002000
Security Review6,0002,500$0.001600
Bug Detection5,0002,000$0.001300
Document Summarization10,0001,000$0.001400
PDF Summarization15,0001,500$0.002100
Meeting Notes8,0002,000$0.001600

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 (75% read discount)
1K$1.8$1.7
10K$18$16.95
100K$180$169.5
500K$900$847.5
1M$1,800$1,695

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 GPT 4.1 Nano

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

ModelProviderInput $/MTokOutput $/MTokInput savings
Gemini 2.5 Flash-LiteGemini$0.10$0.40Same price
Gemini 3.1 Flash-LiteGemini$0.25$1.50150% more
Gemini 3.5 Flash-LiteGemini$0.30$2.50200% more
Gemini 2.5 FlashGemini$0.30$2.50200% more
Gemini 3 FlashGemini$0.50$3.00400% more
Gemini 3.6 FlashGemini$0.75$3.75650% more
Gemini 3.7 FlashGemini$0.75$3.75650% more
Gemini 3.8 FlashGemini$0.75$3.75650% more
Claude Haiku 4.5Claude$1.00$5.00900% more
Gemini Robotics ER 2Gemini$1.00$5.00900% more
Grok Build 0.1Grok$1.00$2.00900% more
Gemini 2.5 Computer UseGemini$1.25$10.001150% more
Gemini 3.5 FlashGemini$1.50$9.001400% more
Gemini Omni 1.1 FlashGemini$1.50$9.001400% more
Gemini Omni FlashGemini$1.50$9.001400% more

Other GPT models

Track your GPT 4.1 Nano spend

See exactly how much you spend on GPT 4.1 Nano and where you can save. Two-line wrapper install, no API keys shared.