Compare · ModelsLive · 2 picked · head to head
Gemma 4 31B vs GPT-5.1-Codex-Mini
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Gemma 4 31B wins on 5/8 benchmarks
Gemma 4 31B wins 5 of 8 shared benchmarks. Leads in coding · reasoning · language.
Category leads
coding·Gemma 4 31Breasoning·Gemma 4 31Blanguage·Gemma 4 31Bmath·GPT-5.1-Codex-Miniknowledge·Gemma 4 31B
Hype vs Reality
Attention vs performance
Gemma 4 31B
#31 by perf·no signal
GPT-5.1-Codex-Mini
#39 by perf·no signal
Best value
Gemma 4 31B
4.5x better value than GPT-5.1-Codex-Mini
Gemma 4 31B
241.6 pts/$
$0.26/M
GPT-5.1-Codex-Mini
53.7 pts/$
$1.13/M
Vendor risk
Who is behind the model
Google DeepMind
$4.00T·Tier 1
OpenAI
$840.0B·Tier 1
Head to head
8 benchmarks · 2 models
Gemma 4 31BGPT-5.1-Codex-Mini
LiveBench · Agentic Coding
Gemma 4 31B
40.0
GPT-5.1-Codex-Mini
40.0
LiveBench · Coding
GPT-5.1-Codex-Mini leads by +9.6
Gemma 4 31B
60.3
GPT-5.1-Codex-Mini
69.9
LiveBench · Data Analysis
Gemma 4 31B leads by +9.1
Gemma 4 31B
58.8
GPT-5.1-Codex-Mini
49.7
LiveBench · If
Gemma 4 31B leads by +8.6
Gemma 4 31B
67.6
GPT-5.1-Codex-Mini
59.0
LiveBench · Language
Gemma 4 31B leads by +8.3
Gemma 4 31B
71.3
GPT-5.1-Codex-Mini
63.0
LiveBench · Mathematics
GPT-5.1-Codex-Mini leads by +2.3
Gemma 4 31B
73.9
GPT-5.1-Codex-Mini
76.3
LiveBench · Overall
Gemma 4 31B leads by +1.2
Gemma 4 31B
61.6
GPT-5.1-Codex-Mini
60.4
LiveBench · Reasoning
GPT-5.1-Codex-Mini leads by +5.3
Gemma 4 31B
59.4
GPT-5.1-Codex-Mini
64.7
Full benchmark table
| Benchmark | Gemma 4 31B | GPT-5.1-Codex-Mini |
|---|---|---|
LiveBench · Agentic Coding | 40.0 | 40.0 |
LiveBench · Coding | 60.3 | 69.9 |
LiveBench · Data Analysis | 58.8 | 49.7 |
LiveBench · If | 67.6 | 59.0 |
LiveBench · Language | 71.3 | 63.0 |
LiveBench · Mathematics | 73.9 | 76.3 |
LiveBench · Overall | 61.6 | 60.4 |
LiveBench · Reasoning | 59.4 | 64.7 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| Gemma 4 31B | $0.13 | $0.38 | 262K tokens (~131 books) | $1.93 |
| GPT-5.1-Codex-Mini | $0.25 | $2.00 | 400K tokens (~200 books) | $6.88 |