Model Comparison
Gemma 4 E4B (Reasoning)
vs. GPT-5.5 (high)
Comparing 2 AI models · 7 benchmarks · Google, OpenAI
Recommended Pick
Op GPT-5.5 (high) 10 metric wins Strongest on: Throughput, Reasoning, Intelligence
Lowest Price
Gemma 4 E4B (Reasoning)
$0.00/1M input price
Best Reasoning
GPT-5.5 (high)
63.1 reasoning score
Blends available reasoning benchmarks
Best for Coding
GPT-5.5 (high)
71.6 coding index
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Differences That Matter
Price gap
Gemma 4 E4B (Reasoning) is ∞x cheaper on input tokens than GPT-5.5 (high).
Reasoning gap
GPT-5.5 (high) leads Gemma 4 E4B (Reasoning) by 38.5 points on reasoning.
Top-pick rationale
GPT-5.5 (high) wins 10 measurable categories, including Throughput, Reasoning, Intelligence, GPQA.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Gemma 4 E4B (Reasoning)
TTFT
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GPT-5.5 (high)
OpenAI
TTFT
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Which answer was more useful?
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Full Comparison
| Metric | Go Gemma 4 E4B (Reasoning) | Top Pick Op GPT-5.5 (high) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.00/1M | $5.00/1M |
| Output Cost | $0.00/1M | $30.00/1M |
| Blended (3:1) | — | $11.25/1M |
| Specifications | ||
| Organization | OpenAI | |
| Release Date | Apr 3, 2026 | Apr 23, 2026 |
| Performance & Speed | ||
| Throughput | — | 75.7 tok/s |
| TTFT | — | 14725ms |
| Latency | — | 14725ms |
| Composite Indices | ||
| Value Score | — | 100.0 |
| Reasoning Score | 24.6 | 63.1 |
| Intelligence | 12.5 | 53.1 |
| Coding | — | 71.6 |
| Standard Benchmarks | ||
| GPQA | 57.6% | 93.2% |
| HLE | 3.7% | 43.0% |
| SciCode | 24.4% | 55.9% |
| LCR | 30.7% | 73.3% |
| IFBench | 44.2% | 71.6% |
| TAU-bench v2 | 20.8% | 93.0% |
| TerminalBench Hard | 8.3% | 59.8% |
Key Takeaways
Gemma 4 E4B (Reasoning) offers the best value at $0.00/1M, making it ideal for high-volume applications and cost-conscious projects.
GPT-5.5 (high) has the strongest reasoning profile with a 63.1 reasoning score, combining the available reasoning-heavy benchmarks.
GPT-5.5 (high) reaches a 71.6 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
Gemma 4 E4B (Reasoning)
- Cost-sensitive applications
- High-volume processing
GPT-5.5 (high)
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
