GPT-5.4 Nano
by OpenAI · openai/gpt-5.4-nano · #117 cheapest of 325 paid models
Prices updated Jul 22, 2026, 1:31 AM UTC · refreshed hourly
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...
Compare vs:Claude Sonnet 5Claude Opus 4.6Claude Haiku 4.5Gemini 3.6 Flash
Pricing
Input
$0.20
per 1M tokens
Output
$1.25
per 1M tokens
Blended (3:1)
$0.463
3 input : 1 output
Cache read
$0.02
per 1M cached tokens
Cache write
—
per 1M tokens
Cache & batch economics
Effective prices for GPT-5.4 Nano with prompt caching.
| Cache hit rate | Effective blended $/1M | Example request* | vs no cache |
|---|---|---|---|
| 0% | $0.463 | $0.0217 | — |
| 50% | $0.395 | $0.0126 | −42% |
| 90% | $0.341 | $0.00545 | −75% |
*Example: 100K sticky context + 2K new input + 1K output. Batch discount is an approximate 50% off list rates for this provider’s batch API. Confirm on the vendor’s pricing page.
What a request costs
| Workload | Input tokens | Output tokens | Cost / request | Cost / 1K requests |
|---|---|---|---|---|
| Short chat message | 500 | 300 | $0.000475 | $0.475 |
| Document summary | 8,000 | 1,000 | $0.00285 | $2.85 |
| Codebase question (RAG) | 30,000 | 2,000 | $0.0085 | $8.50 |
| Long-context analysis | 150,000 | 5,000 | $0.0362 | $36.25 |
Performance
Intelligence Index
38.2
AA composite quality
Coding Index
56.1
Math Index
—
Agentic Index
27.5
Output speed
161 tok/s
median
Time to first token
3.62s
median
Time to first answer
3.62s
after reasoning tokens
Artificial Analysis benchmarks
| Benchmark | Score |
|---|---|
| GPQA Diamond | 81.7% |
| Humanity's Last Exam | 26.5% |
| SciCode | 46.9% |
| IFBench | 75.9% |
| AA-LCR (Long Context Reasoning) | 66.0% |
| Terminal-Bench Hard | 42.4% |
| Terminal-Bench 2.1 | 60.7% |
| τ²-Bench (Telecom) | 76.0% |
| τ³-Bench Banking | 21.0% |
Specs
Context window
400K
tokens
Max output
128K
tokens
Input modalities
file, image, text
Tokenizer
GPT