Model comparison
Gemma 4 E2B vs o3
Head-to-head evidence from 12 shared benchmark results across 6 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Gemma 4 E2B #162 (Estimated); o3 #131 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Gemma 4 E2B and o3 share 12 comparable benchmark results. 0 of 8 categories are comparable. 2 results are unique to Gemma 4 E2B; 4 to o3.
Updated July 18, 2026- Shared results
- 12
- Gemma 4 E2B only
- 2
- o3 only
- 4
- Comparable categories
- 0 / 8
Benchmark data for Gemma 4 E2B and o3 is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 12 shared benchmark results across 6 evidence categories; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
o3 is priced at $2.00 input / $8.00 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Gemma 4 E2B. o3 has the larger context window at 200K, compared with 128K for Gemma 4 E2B.
Category breakdown
Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.
| Category | Gemma 4 E2B | Δ | o3 |
|---|---|---|---|
| Knowledge | Gemma 4 E2B56.9 | MarginNo overlap | o3Not measured |
| Math | Gemma 4 E2BNot measured | MarginNo overlap | o314.5 |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Gemma 4 E2B | o3 | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Gemma 4 E2B$0 input / $0 output | o3$2 input / $8 output | Gemma 4 E2B has the lower combined listed price. |
| Generation speedtokens per second | Gemma 4 E2BNot available | o3118 tok/s | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Gemma 4 E2BNot available | o35.38 s | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Gemma 4 E2B128K | o3200K | o3 lists the larger context window. |
Benchmark Deep Dive
Agentic1 benchmarks
| Benchmark | Gemma 4 E2B | o3 | Result |
|---|---|---|---|
| τ²-bench resultsSource | 20.8% | 80.7% | o3 leads |
Coding1 benchmarks
| Benchmark | Gemma 4 E2B | o3 | Result |
|---|---|---|---|
| AA-SciCodeSource | 20.9% | 41.0% | o3 leads |
Reasoning2 benchmarks
Knowledge8 benchmarks
| Benchmark | Gemma 4 E2B | o3 | Result |
|---|---|---|---|
| GPQASource | 43.4% | — | Not comparable |
| MMLU-ProSource | 60% | — | Not comparable |
| Artificial Analysis Intelligence IndexSource | 9.3% | 30.4% | o3 leads |
| AA-GPQA DiamondSource | 43.3% | 82.7% | o3 leads |
| AA-HLESource | 4.8% | 20.0% | o3 leads |
| AA-Omniscience IndexSource | -24.0% | -15.3% | o3 leads |
| AA-Omniscience AccuracySource | 6.7% | 38.4% | o3 leads |
| AA-Omniscience Hallucination RateSource | 32.9% | 87.1% | Gemma 4 E2B leads |
Math3 benchmarks
Multimodal2 benchmarks
Inst. Following1 benchmarks
| Benchmark | Gemma 4 E2B | o3 | Result |
|---|---|---|---|
| AA-IFBenchSource | 38.0% | 71.4% | o3 leads |
Frequently Asked Questions (3)
Can I compare Gemma 4 E2B and o3 on BenchLM yet?
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
Why does this comparison show “coming soon”?
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
What data is available for Gemma 4 E2B and o3 today?
Gemma 4 E2B: $0.00 input / $0.00 output per 1M tokens o3: $2.00 input / $8.00 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
Related Comparisons
Explore More
The AI models change fast. We track them for you.
A weekly brief for engineers and researchers covering new models, ranking shifts, and pricing changes.
Free. No spam. Unsubscribe anytime.