OpenAI, proprietary

GPT-4.1 nano

GPT-4.1 nano by OpenAI ranks 327th of 354 ranked models on the Noometry Index as of October 2026, with a score of 27.9. Its strongest category is agentic & tool use, where it ranks 104th. API pricing starts at $0.10 per million input tokens and $0.40 per million output tokens, with a 1.05M-token context window.

Last verified

Specifications

Noometry rank
#327 of 354
Index score
27.9
Evidence
Confirmed 38 results
Provider
OpenAI
Released
April 14, 2025
Weights
Proprietary
Reasoning
No
Context window
1.05M
Max output
33K
Input price
$0.10 / M
Output price
$0.40 / M
Blended price
$0.18 / M
Output speed
135 tokens/s Kagi
Value
#48 of 219
Knowledge cutoff
April 2024
Input
text, image

Category scores

Each category score combines every public result we have in that category.

GPT-4.1 nano category scores
  1. Coding 24.1
  2. Agentic & Tool Use 26.5
  3. Reasoning 8.5
  4. Math 26.9
  5. Knowledge 21.8
  6. Multimodal 29.2
  7. Multilingual 41.6
  8. Instruction Following 67.8
  9. Long Context 23.7
  10. Writing & Preference 40.5
GPT-4.1 nano category ranks
CategoryScoreRankResults
Coding24.1#3304
Agentic & Tool Use26.5#1041
Reasoning8.5#3497
Math26.9#2524
Knowledge21.8#2735
Multimodal29.2#1131
Multilingual41.6#2051
Instruction Following67.8#1932
Long Context23.7#2962
Writing & Preference40.5#2435

Strengths and weaknesses

Categories where GPT-4.1 nano places highest and lowest among the models ranked in each, with its score against that category's median.

Strongest categories

GPT-4.1 nano: strongest categories
CategoryScorevs medianRank
Instruction Following67.8−3.5#193 of 305, top 64%
Agentic & Tool Use26.5−3.8#104 of 154, top 68%
Multilingual41.6−5.8#205 of 297, top 70%

Weakest categories

GPT-4.1 nano: weakest categories
CategoryScorevs medianRank
Long Context23.7−17.2#296 of 296, top 100%
Reasoning8.5−15.1#349 of 350, top 100%
Coding24.1−14.6#330 of 340, top 98%

Closest competitors

The models ranked just above and below GPT-4.1 nano. When scores are this close, price and speed are often the better way to choose.

Models ranked closest to GPT-4.1 nano
ModelRankScoreBlended $/MSpeed
Llama 3-70B#32328.8—104Compare
GPT-4o#32428.6$4.38—Compare
Ministral 8B#32528.2$0.15—Compare
Gemma 3 4B#32628.1$0.0572Compare
Phi 3 Mini 4k Instruct#32827.9——Compare
Yi-34B#32927.8——Compare
Llama 4 Scout#33027.7$0.15272Compare
Llama 3.2 90B#33127.5——Compare

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Benchmark results

Every published result we track, with its source. Bold rows are the ones used for ranking; where several exist we prefer independent runs over self-reported numbers.

Coding

GPT-4.1 nano Coding benchmark results
BenchmarkScorePositionSettingSourceDate
Aider Polyglot8.9%#42 of 44, top 96%Epoch AI
SciCode25.9%#112 of 121, top 93%Epoch AI
WeirdML19%#106 of 119, top 90%Epoch AI
LMArena Coding1306#197 of 294, top 68%LMArena2026-10-08

Agentic & Tool Use

GPT-4.1 nano Agentic & Tool Use benchmark results
BenchmarkScorePositionSettingSourceDate
Berkeley Function Calling Leaderboard33%#30 of 49, top 62%fcBerkeley Function Calling Leaderboard

Reasoning

GPT-4.1 nano Reasoning benchmark results
BenchmarkScorePositionSettingSourceDate
ARC-AGI-20%#76 of 83, top 92%Epoch AI
Kagi LLM Benchmark33.3%#90 of 99, top 91%Kagi LLM Benchmark
ARC-AGI-10%#83 of 83, top 100%Epoch AI
CritPt0%#111 of 134, top 83%Epoch AI
LMArena Hard Prompts1286#196 of 297, top 66%LMArena2026-10-08
DTBench52.5%#130 of 151, top 87%Epoch AI
LMCA5.5%#121 of 125, top 97%Epoch AI
Epoch Capabilities Index129.62#140 of 213, top 66%Epoch AI2025-04-14

Math

GPT-4.1 nano Math benchmark results
BenchmarkScorePositionSettingSourceDate
OTIS Mock AIME 2024-202528.9%#122 of 173, top 71%Epoch AI2025-04-14
Omni-MATH36.7%#31 of 57, top 55%HELM Capabilities
LMArena Math1274#195 of 285, top 69%LMArena2026-10-08
MATH Level 570%#31 of 79, top 40%Epoch AI2025-04-14
FrontierMath (Feb 2025 set)1%#59 of 68, top 87%Epoch AI2025-04-14

Knowledge

GPT-4.1 nano Knowledge benchmark results
BenchmarkScorePositionSettingSourceDate
GPQA Diamond48.9%#131 of 186, top 71%Epoch AI2025-04-14
SimpleQA Verified6%#77 of 77, top 100%Epoch AI2026-08-31
MMLU-Pro55%#48 of 58, top 83%HELM Capabilities
GPQA (HELM)50.7%#33 of 57, top 58%HELM Capabilities
LMArena Expert1272#187 of 273, top 69%LMArena2026-10-08

Multimodal

GPT-4.1 nano Multimodal benchmark results
BenchmarkScorePositionSettingSourceDate
LMArena Vision1063#113 of 122, top 93%LMArena2026-10-09

Multilingual

GPT-4.1 nano Multilingual benchmark results
BenchmarkScorePositionSettingSourceDate
LMArena Non-English1260#205 of 297, top 70%LMArena2026-10-08
LMArena Chinese1270#199 of 285, top 70%LMArena2026-10-08
LMArena German1288#154 of 231, top 67%LMArena2026-10-08
LMArena Japanese1198#162 of 211, top 77%LMArena2026-10-08
LMArena Russian1261#204 of 283, top 73%LMArena2026-10-08

Instruction Following

GPT-4.1 nano Instruction Following benchmark results
BenchmarkScorePositionSettingSourceDate
IFEval84.3%#21 of 57, top 37%HELM Capabilities
LMArena Instruction Following1267#199 of 298, top 67%LMArena2026-10-08

Long Context

GPT-4.1 nano Long Context benchmark results
BenchmarkScorePositionSettingSourceDate
Fiction.LiveBench25%#47 of 47, top 100%Epoch AI
LMArena Longer Query1283#201 of 291, top 70%LMArena2026-10-08

Writing & Preference

GPT-4.1 nano Writing & Preference benchmark results
BenchmarkScorePositionSettingSourceDate
LMArena Text1285#204 of 297, top 69%LMArena2026-10-08
LMArena Creative Writing1260#199 of 295, top 68%LMArena2026-10-08
EQ-Bench Creative Writing946#98 of 115, top 86%EQ-Bench
WildBench81.2%#25 of 57, top 44%HELM Capabilities
LMArena Multi-Turn1277#202 of 295, top 69%LMArena2026-10-08

API pricing by provider

GPT-4.1 nano API prices
RouteInput $/MOutput $/MCached input $/MChecked
azure$0.10$0.40$0.0252026-10-10
openai$0.10$0.40$0.0252026-10-10
openrouter$0.10$0.40$0.0252026-10-10

Compare GPT-4.1 nano

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Frequently asked questions

How good is GPT-4.1 nano?

GPT-4.1 nano by OpenAI ranks 327th of 354 ranked models on the Noometry Index as of October 2026, with a score of 27.9. Its strongest category is agentic & tool use, where it ranks 104th. API pricing starts at $0.10 per million input tokens and $0.40 per million output tokens, with a 1.05M-token context window.

How much does GPT-4.1 nano cost?

GPT-4.1 nano costs $0.10 per million input tokens and $0.40 per million output tokens on OpenAI's own API, with cached input at $0.025.

What is GPT-4.1 nano's context window?

GPT-4.1 nano accepts up to 1.05M tokens of input and can write up to 33K tokens in one response.

Is GPT-4.1 nano open source?

No. GPT-4.1 nano is proprietary and available only through OpenAI's API and partner platforms.

How fast is GPT-4.1 nano?

GPT-4.1 nano generated about 135 output tokens per second in the Kagi LLM Benchmark's timed runs. Speed varies by provider, load and reasoning effort.

What are GPT-4.1 nano's strengths and weaknesses?

Relative to other ranked models, GPT-4.1 nano places best in instruction following, agentic & tool use, multilingual and lowest in long context, reasoning, coding.

What is GPT-4.1 nano best at?

Its best category is agentic & tool use, where it ranks 104th on Noometry.