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GPT-5.4 Nano vs Qwen3.5 397B A17B

GPT-5.4 Nano

OpenAI

79#62
vs
Qwen3.5 397B A17B

Alibaba

79#60
Signal-by-Signal Comparison
SignalGPT-5.4 NanoDeltaQwen3.5 397B A17B
Capabilities
100
+17
83
Benchmarks
90
+10
80
Pricing
99
+1
98
Context window size
89
+3
86
Recency
100
--
100
Output Capacity
85
+5
80
Overall Result
5 wins
of 6
0 wins
GPT-5.4 Nano wins 5 of 6 signals

Score History

Score History (23 data points)
GPT-5.4 NanoQwen3.5 397B A17B
GPT-5.4 Nano

79.3

current score

Leader

Qwen3.5 397B A17B

right now

Qwen3.5 397B A17B

79.4

current score

LMMarketCap.com
Interactive Price Comparison
100Kcalls/month
1,000tokens (~1,333 chars)
500tokens (~667 chars)

GPT-5.4 Nano

OpenAI

Best Value
Per request$0.000825
Daily$2.75
Monthly$82.50
Annual$990.00

Qwen3.5 397B A17B

Alibaba

Per request$0.001560
Daily$5.20
Monthly$156.00
Annual$1872.00

GPT-5.4 Nano saves you $73.50/month

That's $882.00/year compared to Qwen3.5 397B A17B at your current usage level of 100K calls/month.

47% cheaper
Choose GPT-5.4 Nano for cost optimization

GPT-5.4 Nano pricing:
Input:$0.20/M tokens
Output:$1.25/M tokens
Qwen3.5 397B A17B pricing:
Input:$0.39/M tokens
Output:$2.34/M tokens
GPT-5.4 Nano

OpenAI

79

Composite Score

Winner
Qwen3.5 397B A17B

Alibaba

79

Composite Score

Signal-by-Signal Comparison
MetricGPT-5.4 NanoQwen3.5 397B A17BWinner
Overall Score
79
79
Qwen3.5 397B A17B
Rank#62#60
Qwen3.5 397B A17B
Quality Rank#62#60
Qwen3.5 397B A17B
Adoption Rank#62#60
Qwen3.5 397B A17B
Parameters--397B--
Context Window400K262K
GPT-5.4 Nano
Pricing$0.20/$1.25/M$0.39/$2.34/M--
Signal Scores
Capabilities
100
83
GPT-5.4 Nano
Benchmarks
90
80
GPT-5.4 Nano
Pricing
99
98
GPT-5.4 Nano
Context window size
89
86
GPT-5.4 Nano
Recency
100
100
GPT-5.4 Nano
Output Capacity
85
80
GPT-5.4 Nano
Benchmark Head-to-Head(11 benchmarks)
GPT-5.4 Nano: 1Qwen3.5 397B: 1
GPT-5.4 Nano
Qwen3.5 397B
Normalized 0-100%
MMLU
94%-
MMLU-Pro
87%87.8%
GPQA Diamond
88.5%-
MATH-500
95.5%-
HumanEval
97.5%-
SWE-bench Verified
80%-
IFEval
93.5%-
BBH
92%-
Arena Elo
14851442
LiveBench
79%-
HLE
39%-
Benchmark Interpretation

Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.

GPT-5.4 NanoStrong Performer

Scores 79/100 (rank #62), placing it in the top 79% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
Qwen3.5 397B A17BStrong Performer

Scores 79/100 (rank #60), placing it in the top 80% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

With only a 0-point gap, these models are in the same performance tier. The practical difference in output quality is minimal - your choice should depend on pricing, latency requirements, and specific feature needs.

When to Use Each Model

Choose GPT-5.4 Nano when you need:

  • High-volume production workloads where API costs must be minimized
  • Processing long documents or large codebases (400K token context)
  • Step-by-step reasoning and chain-of-thought problem solving

Choose Qwen3.5 397B A17B when you need:

  • Step-by-step reasoning and chain-of-thought problem solving
  • Self-hosted deployments where you need full control over the model
Cost-Performance Analysis
GPT-5.4 NanoBest Value
Input cost$0.20/M tokens
Output cost$1.25/M tokens
Cost per quality point$0.018
Est. monthly (1M tokens/day)$21.75
Qwen3.5 397B A17B
Input cost$0.39/M tokens
Output cost$2.34/M tokens
Cost per quality point$0.034
Est. monthly (1M tokens/day)$40.95

GPT-5.4 Nano offers 47% better value per quality point. At 1M tokens/day, you'd spend $21.75/month with GPT-5.4 Nano vs $40.95/month with Qwen3.5 397B A17B - a $19.20 monthly difference.

Latency & Speed
GPT-5.4 NanoFaster
Speed score0/100
Qwen3.5 397B A17B
Speed score0/100

Both models have comparable response speeds. For most applications, the latency difference is negligible.

When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.

Example Use Cases

Code generation & review

Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring

GPT-5.4 Nano

Customer support chatbot

Suitable for user-facing chat with competitive response times. GPT-5.4 Nano also offers lower per-token costs for high-volume support

GPT-5.4 Nano

Long document analysis

Larger context window (400K tokens) can process longer documents, contracts, and research papers in a single pass

GPT-5.4 Nano

Batch data extraction

Lower output pricing ($1.25/M) reduces costs when processing thousands of records daily

GPT-5.4 Nano

Creative writing & content

Higher overall composite score (79/100) correlates with better nuance, coherence, and style in long-form content

Qwen3.5 397B A17B

Image understanding & OCR

Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly

GPT-5.4 Nano
Which Should You Choose?
Our recommendation:
Qwen3.5 397B A17B

GPT-5.4 Nano and Qwen3.5 397B A17B are extremely close in overall performance (only 0.10000000000000853 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.

by OpenAI

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Cost - 47% lower pricing; better value at scale
  • Choose for Reliability - Higher uptime and faster response speeds
  • Choose for Prototyping - Stronger community support and better developer experience
  • Choose for Production - Wider enterprise adoption and proven at scale

by Alibaba

Consider for specialized use cases.

Capability Comparison
CapabilityGPT-5.4 NanoQwen3.5 397B A17B
Vision (Image Input)
Function Calling
Streaming
JSON Mode
Reasoning
Web Searchdiffers
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

GPT-5.4 Nano

OpenAI

Best Value
$1.86
estimated monthly cost

Qwen3.5 397B A17B

Alibaba

$3.51
estimated monthly cost

GPT-5.4 Nano saves you $1.65/month

That's 47% cheaper than Qwen3.5 397B A17B at 1,000 tokens/request and 100 requests/day.

Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.

Parameters & Context
ParameterGPT-5.4 NanoQwen3.5 397B A17B
Context Window400K262K
Max Output Tokens128,00065,536
Open SourceNoYes
CreatedMar 17, 2026Feb 16, 2026
Last updated: 27m ago

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