AI Models · Paid vs Paid

GPT-4.1 Paid vs GPT-5 Nano Paid

GPT-4.1 vs GPT-5 Nano compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.

Prices & specs refreshed from live data · olud.ai

Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.

GPT-4.1PaidOpenAI
$2 /M input
$8 /M outputManaged API (no infra to run)
TypeProprietary
Context window1M tokens
MultimodalYes
Self-hostNo
GPT-5 NanoPaidOpenAI
$0.05 /M input
$0.4 /M outputManaged API (no infra to run)
TypeProprietary
Context window400K tokens
MultimodalYes
Self-hostNo
Choose GPT-5 Nano for the lower output price ($0.4/M vs $8/M). Choose GPT-4.1 if you need the larger 1M context window.

GPT-4.1 vs GPT-5 Nano specs

SpecGPT-4.1GPT-5 NanoWinner
MakerOpenAIOpenAI
TypeProprietaryProprietary
Context window1M tokens400K tokensGPT-4.1
Input price$2/M$0.05/MGPT-5 Nano
Output price$8/M$0.4/MGPT-5 Nano
Vision / multimodalYesYes= Tie
Tool / function callingYesYes= Tie
Self-hostableNo (API only)No (API only)
LicenseProprietaryProprietary

Price gap & when to choose each

20×cheaper per output token

GPT-5 Nano is ~20× cheaper than GPT-4.1 on output tokens ($0.4 vs $8 per M tokens).

Choose GPT-4.1 if…
  • You want frontier performance through a managed API
  • You need the longer 1M context window
  • You value reliability & ecosystem
  • You don't want to manage infrastructure
Choose GPT-5 Nano if…
  • You want frontier performance through a managed API
  • You want the lower output price
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityGPT-4.1GPT-5 Nano
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: GPT-4.1 vs GPT-5 Nano

Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).

GPT-5 Nano delivers 26× more intelligence per dollar.
GPT-4.1
GPT-5 Nano
Intelligence index
12.7
13
Math index
34.7
83.7
GPQA
66.6%
67.6%
MMLU-Pro
80.6%
78%
Humanity's Last Exam
4.2%
9.5%
Long Context Reasoning
68.3%
45%
LiveCodeBench
45.7%
78.9%
MATH-500
91.3%
AIME
43.7%
AIME 2025
34.7%
83.7%
IFBench
43%
67.6%
τ²-Bench
47.1%
36.5%
Terminal-Bench Hard
13.6%
12.1%
Speed
0 tok/s
0 tok/s
Latency
0s
0s
Intelligence per $
3.6
94.2

Benchmark data by Artificial Analysis.

How GPT-4.1 and GPT-5 Nano score

🤝 Neck and neck on these criteria (3.2 vs 3.4 / 5).
CriterionGPT-4.1GPT-5 Nano
Cost-efficiency3.55.0
Context window5.04.5
Openness1.51.5
Self-hosting1.01.0
Multimodality5.05.0

Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.

What each model is

GPT-4.1 Paid

OpenAI · Proprietary

GPT-4.1 is a flagship large language model optimized for advanced instruction following, real-world software engineering, and long-context reasoning. It supports a 1 million token context window and outperforms GPT-4o and...

GPT-5 Nano Paid

OpenAI · Proprietary

GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger...

Other models in these families

These variants are tracked but not compared here — one page per family keeps the comparison readable.

Other variants tracked
GPT-4.1 (batch)GPT-4.1 MiniGPT-4.1 Mini (batch)GPT-4.1 NanoGPT-4.1 Nano (batch)
Other variants tracked
GPT-5.4 NanoGPT-5.4 Nano (batch)GPT-5 Nano (batch)

Frequently asked questions

GPT-4.1 vs GPT-5 Nano — which is cheaper?

GPT-5 Nano is cheaper on output ($0.4/M vs $8/M).

Which has the larger context window?

GPT-4.1 offers the larger context window (1M tokens).

GPT-4.1 vs GPT-5 Nano — which should I pick in 2026?

Choose GPT-5 Nano for the lower output price ($0.4/M vs $8/M). Choose GPT-4.1 if you need the larger 1M context window.

People also compare

Explore more open-source AI

Browse the full open-source model leaderboard, thousands of tools and live benchmarks — all in one place.

Open the leaderboard →