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GPT-4o Search Preview vs Qwen3.5-Flash

vs
Qwen3.5-Flash

Alibaba

68#113
Signal-by-Signal Comparison
SignalGPT-4o Search PreviewDeltaQwen3.5-Flash
Capabilities
50
-33
83
Benchmarks
72
+6
66
Pricing
90
-10
100
Context window size
73
-13
86
Recency
44
-56
100
Output Capacity
70
-10
80
Overall Result
1 wins
of 6
5 wins
Qwen3.5-Flash wins 5 of 6 signals

Score History

Score History (22 data points)
GPT-4o Search PreviewQwen3.5-Flash
GPT-4o Search Preview

68.7

current score

Leader

GPT-4o Search Preview

right now

Qwen3.5-Flash

68.2

current score

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

GPT-4o Search Preview

OpenAI

Per request$0.007500
Daily$25.00
Monthly$750.00
Annual$9000.00

Qwen3.5-Flash

Alibaba

Best Value
Per request$0.000195
Daily$0.65
Monthly$19.50
Annual$234.00

Qwen3.5-Flash saves you $730.50/month

That's $8766.00/year compared to GPT-4o Search Preview at your current usage level of 100K calls/month.

97% cheaper
Choose Qwen3.5-Flash for cost optimization

GPT-4o Search Preview pricing:
Input:$2.50/M tokens
Output:$10.00/M tokens
Qwen3.5-Flash pricing:
Input:$0.07/M tokens
Output:$0.26/M tokens
Winner
GPT-4o Search Preview

OpenAI

69

Composite Score

Qwen3.5-Flash

Alibaba

68

Composite Score

Signal-by-Signal Comparison
MetricGPT-4o Search PreviewQwen3.5-FlashWinner
Overall Score
69
68
GPT-4o Search Preview
Rank#111#113
GPT-4o Search Preview
Quality Rank#111#113
GPT-4o Search Preview
Adoption Rank#111#113
GPT-4o Search Preview
Parameters------
Context Window128K1000K
Qwen3.5-Flash
Pricing$2.50/$10.00/M$0.07/$0.26/M--
Signal Scores
Capabilities
50
83
Qwen3.5-Flash
Benchmarks
72
66
GPT-4o Search Preview
Pricing
90
100
Qwen3.5-Flash
Context window size
73
86
Qwen3.5-Flash
Recency
44
100
Qwen3.5-Flash
Output Capacity
70
80
Qwen3.5-Flash
Benchmark Head-to-Head(15 benchmarks)
GPT-4o Search: 0Qwen3.5-Flash: 1
GPT-4o Search
Qwen3.5-Flash
Normalized 0-100%
MMLU
88.7%-
MMLU-Pro
72.6%-
GPQA Diamond
53.6%-
MATH-500
76.6%-
HumanEval
90.2%-
SWE-bench Verified
30.8%-
GSM8K
95.8%-
IFEval
84.3%-
BBH
83.7%-
ARC-Challenge
96.4%-
HellaSwag
95.3%-
Arena Elo
12861398
LiveBench
38.3%-
BigCodeBench
51.1%-
SimpleQA
38.2%-
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-4o Search PreviewCompetitive

Scores 69/100 (rank #111), placing it in the top 62% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
Qwen3.5-FlashCompetitive

Scores 68/100 (rank #113), placing it in the top 61% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

With only a 1-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-4o Search Preview when you need:

  • Budget-friendly applications with moderate quality requirements

Choose Qwen3.5-Flash when you need:

  • High-volume production workloads where API costs must be minimized
  • Processing long documents or large codebases (1000K token context)
  • Multimodal workflows that require image understanding
  • Agentic applications using tool/function calling
  • Step-by-step reasoning and chain-of-thought problem solving
Cost-Performance Analysis
GPT-4o Search Preview
Input cost$2.50/M tokens
Output cost$10.00/M tokens
Cost per quality point$0.182
Est. monthly (1M tokens/day)$187.50
Qwen3.5-FlashBest Value
Input cost$0.07/M tokens
Output cost$0.26/M tokens
Cost per quality point$0.005
Est. monthly (1M tokens/day)$4.88

Qwen3.5-Flash offers 97% better value per quality point. At 1M tokens/day, you'd spend $4.88/month with Qwen3.5-Flash vs $187.50/month with GPT-4o Search Preview - a $182.63 monthly difference.

Latency & Speed
GPT-4o Search PreviewFaster
Speed score0/100
Qwen3.5-Flash
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-4o Search Preview

Customer support chatbot

Suitable for user-facing chat with competitive response times. Qwen3.5-Flash also offers lower per-token costs for high-volume support

GPT-4o Search Preview

Long document analysis

Larger context window (1000K tokens) can process longer documents, contracts, and research papers in a single pass

Qwen3.5-Flash

Batch data extraction

Lower output pricing ($0.26/M) reduces costs when processing thousands of records daily

Qwen3.5-Flash

Creative writing & content

Higher overall composite score (69/100) correlates with better nuance, coherence, and style in long-form content

GPT-4o Search Preview

Image understanding & OCR

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

Qwen3.5-Flash
Which Should You Choose?
Our recommendation:
GPT-4o Search Preview

GPT-4o Search Preview and Qwen3.5-Flash are extremely close in overall performance (only 0.5 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 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

  • Choose for Cost - 97% lower pricing; better value at scale
Capability Comparison
CapabilityGPT-4o Search PreviewQwen3.5-Flash
Vision (Image Input)differs
Function Callingdiffers
Streaming
JSON Mode
Reasoningdiffers
Web Searchdiffers
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

GPT-4o Search Preview

OpenAI

$16.50
estimated monthly cost

Qwen3.5-Flash

Alibaba

Best Value
$0.4290
estimated monthly cost

Qwen3.5-Flash saves you $16.07/month

That's 97% cheaper than GPT-4o Search Preview 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-4o Search PreviewQwen3.5-Flash
Context Window128K1M
Max Output Tokens16,38465,536
Open SourceNoNo
CreatedMar 12, 2025Feb 25, 2026
Last updated: 32m ago

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