Gemma 3 27B vs GPT-5.1
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
GPT-5.1 by OpenAI wins on 5 of 8 benchmarks against Gemma 3 27B by Google, which leads on 3. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.
Category-by-Category Breakdown
General Intelligence: In general intelligence, GPT-5.1 scores 1464 on Chatbot Arena ELO compared to Gemma 3 27B's 1339.
Coding: In coding, GPT-5.1 scores 49.4 on AA Coding Index compared to Gemma 3 27B's 10.1.
Context: In context, GPT-5.1 scores 400K on Context Length compared to Gemma 3 27B's 131K.
Pricing Comparison
Gemma 3 27B costs $0.08/1M input tokens and $0.45/1M output tokens, while GPT-5.1 costs $1.3/1M input and $10.0/1M output. Gemma 3 27B is the more affordable option for API usage.
Speed Comparison
Gemma 3 27B generates output at 58 tok/s compared to GPT-5.1's 95 tok/s, and the time to first token is 390 ms for Gemma 3 27B versus 350 ms for GPT-5.1. GPT-5.1 delivers faster throughput.
Verdict
For developers prioritizing affordability, Gemma 3 27B has the edge. For those who value general intelligence and speed, GPT-5.1 is the stronger choice.
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Gemma 3 27B vs GPT-5.1 — FAQ
Which is better, Gemma 3 27B or GPT-5.1?
GPT-5.1 wins on more benchmarks overall (5 vs 3). However, the best choice depends on your specific needs — each model excels in different areas.
How does Gemma 3 27B compare to GPT-5.1 for coding?
SWE-bench Verified data is not available for both models. Check the detailed comparison charts above for other coding-related metrics.
Is Gemma 3 27B cheaper than GPT-5.1?
Yes, Gemma 3 27B is cheaper. Gemma 3 27B costs $0.08/1M input and $0.45/1M output tokens. GPT-5.1 costs $1.3/1M input and $10.0/1M output tokens.
Which is faster, Gemma 3 27B or GPT-5.1?
GPT-5.1 is faster, generating output at 95 tok/s compared to 58 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Gemma 3 27B vs GPT-5.1 comparison cover?
This comparison covers 8 benchmarks including Chatbot Arena ELO, Output Speed, Time to First Token, Input Cost, Output Cost, Context Length, AA Coding Index, Cached Input Cost. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.