Model Comparison

Claude 3 Opus
vs. Qwen3.5 2B (Reasoning)

Comparing 2 AI models · 11 benchmarks · Anthropic, Alibaba

Recommended Pick

Anthropic logo Claude 3 Opus 8 metric wins

Strongest on: TTFT, Latency, Reasoning

Best Value

Alibaba logo

Qwen3.5 2B (Reasoning)

100.0 value score

21.3 reasoning / $0.04/1M

Lowest Price

Alibaba logo

Qwen3.5 2B (Reasoning)

$0.02/1M input price

Best Reasoning

Anthropic logo

Claude 3 Opus

27.5 reasoning score

Blends available reasoning benchmarks

Best for Coding

Anthropic logo

Claude 3 Opus

19.5 coding index

Composite Indices

Higher is better; speed and price are normalized

Standard Benchmarks

Only benchmarks with data are shown

Differences That Matter

Best value

Qwen3.5 2B (Reasoning) has the strongest quality-to-price mix at 100.0 out of 100 value points.

Price gap

Qwen3.5 2B (Reasoning) is 750x cheaper on input tokens than Claude 3 Opus.

Reasoning gap

Claude 3 Opus leads Qwen3.5 2B (Reasoning) by 6.1 points on reasoning.

Coding gap

Claude 3 Opus leads Qwen3.5 2B (Reasoning) by 16.0 points on coding.

Top-pick rationale

Claude 3 Opus wins 8 measurable categories, including TTFT, Latency, Reasoning, Intelligence.

Live compare

Response Face-Off

Run one prompt through the selected models and compare response quality with live speed and cost context.

Anthropic logo

Claude 3 Opus

Anthropic

Waiting

TTFT

Time

tok/s

Tokens

Cost

Waiting
Alibaba logo

Qwen3.5 2B (Reasoning)

Alibaba

Waiting

TTFT

Time

tok/s

Tokens

Cost

Waiting

Which answer was more useful?

AI Chat

Chat with 80+ models

Inference API

EU-hosted inference

Full Comparison

Metric
Top Pick
Anthropic logo Claude 3 Opus
Anthropic
Alibaba logo Qwen3.5 2B (Reasoning)
Alibaba
Pricing per 1M tokens
Input Cost $15.00/1M$0.02/1M
Output Cost $75.00/1M$0.10/1M
Blended (3:1) $30.00/1M$0.04/1M
Specifications
Organization AnthropicAlibaba
Release Date Mar 4, 2024Mar 2, 2026
Performance & Speed
Throughput 21.7 tok/s
TTFT 1162ms
Latency 93183ms
Composite Indices
Value Score 0.2100.0
Reasoning Score 27.521.3
Intelligence 18.016.3
Coding 19.53.5
Standard Benchmarks
GPQA 48.9%45.6%
MMLU Pro 69.6%
HLE 3.1%2.1%
LiveCodeBench 27.9%
MATH 500 64.1%
AIME (Original) 3.3%
SciCode 23.3%2.8%
LCR 23.7%
IFBench 31.5%
TAU-bench v2 69.0%
TerminalBench Hard 3.8%

Key Takeaways

Qwen3.5 2B (Reasoning) offers the best value at $0.02/1M, making it ideal for high-volume applications and cost-conscious projects.

Claude 3 Opus has the strongest reasoning profile with a 27.5 reasoning score, combining the available reasoning-heavy benchmarks.

Claude 3 Opus reaches a 19.5 coding index, making it the top choice for software development and code generation tasks.

All models support context windows of ∞+ tokens, suitable for processing lengthy documents and maintaining extended conversations.

When to Choose Each Model

Anthropic logo

Claude 3 Opus

  • Complex reasoning tasks
  • Research & analysis
  • Code generation
  • Software development
Alibaba logo

Qwen3.5 2B (Reasoning)

  • Cost-sensitive applications
  • High-volume processing