Model comparison
Gemma 2 27B vs GPT-5.4 Pro
GPT-5.4 Pro is the stronger model overall, scoring 58.8 to 29.2 on the Noometry Index. Gemma 2 27B costs 104× less per token, which makes it the better buy when GPT-5.4 Pro's lead doesn't matter for your workload.
Last verified . 2 shared benchmarks.
GoogleSummary
- They share 2 benchmarks with published results for both. Gemma 2 27B scores higher in 0 categories and GPT-5.4 Pro in 4 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in math, where GPT-5.4 Pro leads 72.0 to 10.0.
- The biggest single-benchmark swing is GPQA Diamond: 36.5% for Gemma 2 27B and 94.6% for GPT-5.4 Pro.
- Gemma 2 27B is cheaper at $0.65 / $0.65 per million input/output tokens, against $30 / $180 for GPT-5.4 Pro.
- GPT-5.4 Pro accepts more context: 1.05M tokens versus 8K.
- Gemma 2 27B has downloadable open weights; the other is API-only.
Side by side
| Gemma 2 27B | GPT-5.4 Pro | |
|---|---|---|
| Provider | OpenAI | |
| Noometry Index | 29.2 | 58.8 |
| Released | 2024-06-24 | 2026-03-05 |
| Weights | Open | Proprietary |
| Context window | 8K | 1.05M |
| Max output | 2K | 128K |
| Input $ / M tokens | $0.65 | $30 |
| Output $ / M tokens | $0.65 | $180 |
| Results tracked | 34 | 16 |
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Category by category
Coding GPT-5.4 Pro leads
Gemma 2 27B: 33.5 (#243), GPT-5.4 Pro: 42.6 (#89)
| Benchmark | Gemma 2 27B | GPT-5.4 Pro |
|---|---|---|
| WeirdML | — | 57.4% |
| BigCodeBench Instruct | 42.8% | — |
| LiveBench Coding | 36% | — |
| LMArena Coding | 1211 | — |
| BigCodeBench Complete | 52.5% | — |
Reasoning GPT-5.4 Pro leads
Gemma 2 27B: 14.8 (#313), GPT-5.4 Pro: 71.0 (#10)
| Benchmark | Gemma 2 27B | GPT-5.4 Pro |
|---|---|---|
| Epoch Capabilities Index | 122.06 | 159.12 |
| ARC-AGI-2 | — | 83.3% |
| SimpleBench | — | 74.1% |
| ARC-AGI-1 | — | 94.5% |
| CritPt | — | 30% |
| Chess Puzzles | — | 58.6% |
| EnigmaEval | — | 23.8% |
| LiveBench Reasoning | 28.1% | — |
| LMArena Hard Prompts | 1199 | — |
| DTBench | 48% | — |
| LiveBench Data Analysis | 47.9% | — |
| LMCA | 7.1% | — |
| LiveBench | 38.2% | — |
Math GPT-5.4 Pro leads
Gemma 2 27B: 10.0 (#306), GPT-5.4 Pro: 72.0 (#17)
| Benchmark | Gemma 2 27B | GPT-5.4 Pro |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 82.5% |
| FrontierMath Tier 4 | — | 58.5% |
| OTIS Mock AIME 2024-2025 | 1.4% | — |
| LiveBench Math | 26.5% | — |
| LMArena Math | 1212 | — |
| MATH Level 5 | 27.9% | — |
| FrontierMath (Feb 2025 set) | — | 50% |
| FrontierMath Tier 4 (v1) | — | 37.5% |
Knowledge GPT-5.4 Pro leads
Gemma 2 27B: 18.9 (#275), GPT-5.4 Pro: 68.3 (#6)
| Benchmark | Gemma 2 27B | GPT-5.4 Pro |
|---|---|---|
| GPQA Diamond | 36.5% | 94.6% |
| Humanity's Last Exam | — | 44.3% |
| SimpleQA Verified | — | 46.3% |
| Confabulations | 27.1% | — |
| Vectara Hallucination Rate | — | 8.3% |
| LMArena Expert | 1172 | — |
| MMLU | 75.7% | — |
Multilingual Not comparable
Gemma 2 27B: 38.8 (#221), GPT-5.4 Pro: —
| Benchmark | Gemma 2 27B | GPT-5.4 Pro |
|---|---|---|
| LMArena Non-English | 1217 | — |
| LMArena Chinese | 1221 | — |
| LMArena French | 1246 | — |
| LMArena German | 1209 | — |
| LMArena Japanese | 1175 | — |
| LMArena Korean | 1174 | — |
| LMArena Russian | 1234 | — |
| LMArena Spanish | 1228 | — |
Instruction Following Not comparable
Gemma 2 27B: 60.7 (#244), GPT-5.4 Pro: —
| Benchmark | Gemma 2 27B | GPT-5.4 Pro |
|---|---|---|
| LiveBench Instruction Following | 58.1% | — |
| LMArena Instruction Following | 1206 | — |
Long Context Not comparable
Gemma 2 27B: 37.3 (#213), GPT-5.4 Pro: —
| Benchmark | Gemma 2 27B | GPT-5.4 Pro |
|---|---|---|
| LMArena Longer Query | 1231 | — |
Writing & Preference Not comparable
Gemma 2 27B: 44.4 (#220), GPT-5.4 Pro: —
| Benchmark | Gemma 2 27B | GPT-5.4 Pro |
|---|---|---|
| LMArena Text | 1231 | — |
| LMArena Creative Writing | 1241 | — |
| LMArena Multi-Turn | 1224 | — |
| LiveBench Language | 32.6% | — |
Frequently asked questions
Is Gemma 2 27B better than GPT-5.4 Pro?
GPT-5.4 Pro is the stronger model overall, scoring 58.8 to 29.2 on the Noometry Index. Gemma 2 27B costs 104× less per token, which makes it the better buy when GPT-5.4 Pro's lead doesn't matter for your workload.
Which is cheaper, Gemma 2 27B or GPT-5.4 Pro?
Gemma 2 27B is cheaper. It lists at $0.65 per million input tokens and $0.65 per million output tokens; GPT-5.4 Pro lists at $30 and $180.
Is Gemma 2 27B or GPT-5.4 Pro better for coding?
GPT-5.4 Pro scores higher on coding benchmarks: 42.6 versus 33.5 in the Noometry coding category.
Which has the bigger context window?
GPT-5.4 Pro does, with 1.05M tokens against 8K.
How many benchmarks do Gemma 2 27B and GPT-5.4 Pro share?
2 benchmarks have published results for both models. Gemma 2 27B has 34 scored results on Noometry and GPT-5.4 Pro has 16.