GPT-5.4 Nano Paid vs GPT-5 Nano Paid
GPT-5.4 Nano vs GPT-5 Nano compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
GPT-5.4 Nano — full profile › · GPT-5 Nano — full profile ›
Prices & specs refreshed from live data · OpenSourceAI.tech
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
GPT-5.4 Nano vs GPT-5 Nano specs
| Spec | GPT-5.4 Nano | GPT-5 Nano |
|---|---|---|
| Maker | OpenAI | OpenAI |
| Type | Proprietary | Proprietary |
| Context window | 400K tokens | 400K tokens |
| Input price | $0.2/M | $0.05/M |
| Output price | $1.25/M | $0.4/M |
| Vision / multimodal | Yes | Yes |
| Tool / function calling | Yes | Yes |
| Self-hostable | No (API only) | No (API only) |
| License | Proprietary | Proprietary |
Feature comparison
| Capability | GPT-5.4 Nano | GPT-5 Nano |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✓ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✗ | ✗ |
Benchmarks: GPT-5.4 Nano vs GPT-5 Nano
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
How GPT-5.4 Nano and GPT-5 Nano score
| Criterion | GPT-5.4 Nano | GPT-5 Nano |
|---|---|---|
| Cost-efficiency | 4.5 | 5.0 |
| Context window | 4.5 | 4.5 |
| Openness | 1.5 | 1.5 |
| Self-hosting | 1.0 | 1.0 |
| Multimodality | 5.0 | 5.0 |
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-5.4 Nano Paid
GPT-5.4 nano is the most lightweight and cost-efficient variant of the GPT-5.4 family, optimized for speed-critical and high-volume tasks. It supports text and image inputs and is designed for low-latency...
GPT-5 Nano Paid
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.
Frequently asked questions
GPT-5.4 Nano vs GPT-5 Nano — which is cheaper?
GPT-5 Nano is cheaper on output ($0.4/M vs $1.25/M).
Which has the larger context window?
GPT-5.4 Nano offers the larger context window (400K tokens).
GPT-5.4 Nano vs GPT-5 Nano — which should I pick in 2026?
Choose GPT-5 Nano for the lower output price ($0.4/M vs $1.25/M). Choose GPT-5.4 Nano if you need the larger 400K context window.
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