AI model comparison

GPT-5.4 Nano vs Qwen3.5-35B-A3B

Pricing, context window, benchmarks, and features compared side by side. Or skip the guesswork and send one prompt to both.

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.

Input / 1M
$0.20
Output / 1M
$1.25
Context
400K

The Qwen3.5 Series 35B-A3B is a native vision-language model designed with a hybrid architecture that integrates linear attention mechanisms and a sparse mixture-of-experts model, achieving higher inference efficiency.

Input / 1M
$0.08
Output / 1M
$0.75
Context
262K

At a glance

Quick verdict

How the two models stack up on the things people ask about most.

Lower price

qwen logo

Qwen3.5-35B-A3B

1.9x cheaper for a typical chat

Higher intelligence score

openai logo

GPT-5.4 Nano

20.7 vs 19.3 on Artificial Analysis

Larger context window

openai logo

GPT-5.4 Nano

400K vs 262K tokens

Newer release

openai logo

GPT-5.4 Nano

Released March 17, 2026

Benchmarks

Benchmark scores

Independent scores from Artificial Analysis. Higher is better.

Intelligence index

openai logoGPT-5.4 Nano20.7
qwen logoQwen3.5-35B-A3B19.3

Coding index

openai logoGPT-5.4 Nano56.1
qwen logoQwen3.5-35B-A3BNot available

Agentic index

openai logoGPT-5.4 Nano16
qwen logoQwen3.5-35B-A3BNot available

Pricing

GPT-5.4 Nano vs Qwen3.5-35B-A3B API pricing

Per-token API rates. Cheaper option highlighted.

Metricopenai logoGPT-5.4 Nanoqwen logoQwen3.5-35B-A3B
Input tokensPer 1M tokens$0.20$0.08
Output tokensPer 1M tokens$1.25$0.75
Cached input (read)Per 1M tokens$0.02$0.04
Cache writePer 1M tokensNot availableNot available
Web searchPer request$0.01Not available

What it costs in practice

Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.

Chat message

2K in, 500 out

openai logoGPT-5.4 Nano$1.02
qwen logoQwen3.5-35B-A3B$0.54

Coding task

30K in, 4K out

openai logoGPT-5.4 Nano$11$5.60 cached
qwen logoQwen3.5-35B-A3B$5.40$4.20 cached

Long document summary

150K in, 2K out

openai logoGPT-5.4 Nano$32.50$5.50 cached
qwen logoQwen3.5-35B-A3B$13.50$7.50 cached

Specs

Context window and capabilities

How much each model can read, how much it can write, and what it accepts as input.

Metricopenai logoGPT-5.4 Nanoqwen logoQwen3.5-35B-A3B
Context window400K tokens262K tokens
Max output128K tokens33K tokens
Input typesFile, Image, TextImage, Text, Video
Output typesTextText
Reasoning effort levelsExtra high, High, Medium, Low, NoneNot available
Default reasoning effortMediumNot available
Release dateMarch 17, 2026February 25, 2026

Features

Supported features

API features available for each model.

Metricopenai logoGPT-5.4 Nanoqwen logoQwen3.5-35B-A3B
Tool callingSupportedSupported
Structured outputsSupportedSupported
JSON modeSupportedSupported
ReasoningSupportedSupported
TemperatureNot supportedSupported
Stop sequencesNot supportedSupported
Deterministic seedSupportedSupported
Verbosity controlSupportedNot supported

Our take

Qwen3.5-35B-A3B is 1.9x cheaper for a typical chat. GPT-5.4 Nano scores higher on the Artificial Analysis Intelligence Index (20.7 vs 19.3). GPT-5.4 Nano has the larger context window (400K vs 262K tokens). The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.

FAQ

Frequently asked questions

Is GPT-5.4 Nano or Qwen3.5-35B-A3B cheaper?

Qwen3.5-35B-A3B is cheaper for a typical chat (2K input tokens and 500 output tokens). Qwen3.5-35B-A3B costs $0.08 per 1M input tokens and $0.75 per 1M output tokens, while GPT-5.4 Nano costs $0.20 per 1M input tokens and $1.25 per 1M output tokens.

Which has a bigger context window, GPT-5.4 Nano or Qwen3.5-35B-A3B?

GPT-5.4 Nano supports up to 400K tokens of context, compared with 262K for Qwen3.5-35B-A3B.

Is GPT-5.4 Nano smarter than Qwen3.5-35B-A3B?

On the Artificial Analysis Intelligence Index, GPT-5.4 Nano scores 20.7 and Qwen3.5-35B-A3B scores 19.3, putting GPT-5.4 Nano ahead. Benchmarks don't capture everything, so the best test is running your own prompts through both.

Can I use GPT-5.4 Nano and Qwen3.5-35B-A3B at the same time?

Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see GPT-5.4 Nano and Qwen3.5-35B-A3B answer side by side and keep the better response.

openai logoqwen logo

Why choose? Ask both.

Send one prompt to GPT-5.4 Nano and Qwen3.5-35B-A3B at the same time. Compare the answers side by side and keep the best one.