Model comparison
Gemini 3 Flash vs Gemma 4 31B
Head-to-head evidence from 13 shared benchmark results across 6 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Gemini 3 Flash #49 (Supported); Gemma 4 31B #43 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Gemini 3 Flash and Gemma 4 31B share 13 comparable benchmark results. 0 of 8 categories are comparable. 6 results are unique to Gemini 3 Flash; 16 to Gemma 4 31B.
Updated July 23, 2026- Shared results
- 13
- Gemini 3 Flash only
- 6
- Gemma 4 31B only
- 16
- Comparable categories
- 0 / 8
Benchmark data for Gemini 3 Flash and Gemma 4 31B is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 13 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.
Gemini 3 Flash is priced at $0.50 input / $3.00 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Gemma 4 31B. Gemini 3 Flash has the larger context window at 1M, compared with 256K for Gemma 4 31B.
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 | Gemini 3 Flash | Δ | Gemma 4 31B |
|---|---|---|---|
| Coding | Gemini 3 FlashNot measured | MarginNo overlap | Gemma 4 31B41.6 |
| Knowledge | Gemini 3 FlashNot measured | MarginNo overlap | Gemma 4 31B52.9 |
| Math | Gemini 3 Flash27.8 | MarginNo overlap | Gemma 4 31BNot measured |
| Multimodal | Gemini 3 FlashNot measured | MarginNo overlap | Gemma 4 31B76.9 |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Gemini 3 Flash | Gemma 4 31B | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Gemini 3 Flash$0.5 input / $3 output | Gemma 4 31B$0 input / $0 output | Gemma 4 31B has the lower combined listed price. |
| Generation speedtokens per second | Gemini 3 Flash159 tok/s | Gemma 4 31BNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Gemini 3 Flash1.19 s | Gemma 4 31BNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Gemini 3 Flash1M | Gemma 4 31B256K | Gemini 3 Flash lists the larger context window. |
Benchmark Deep Dive
Agentic11 benchmarks
| Benchmark | Gemini 3 Flash | Gemma 4 31B | Result |
|---|---|---|---|
| Claw-EvalSource | 49.2% | — | Not comparable |
| τ²-bench resultsSource | 43.3% | 59.9% | Gemma 4 31B leads |
| Gert LabsSource | 56.63% | 35.26% | Gemini 3 Flash leads |
| JobBenchSource | 11.4% | — | Not comparable |
| AA Agentic IndexSource | — | 14.4% | Not comparable |
| GDPval-AASource | — | 15.2% | Not comparable |
| GDPval-AASource | — | 804 | Not comparable |
| AA EnterpriseOps-GymSource | — | 28.3% | Not comparable |
| AA ITBenchSource | — | 37.3% | Not comparable |
| AA Tau3 BankingSource | — | 15.1% | Not comparable |
| terminalBenchHardSource | — | 36.4% | Not comparable |
Coding5 benchmarks
Reasoning2 benchmarks
Knowledge11 benchmarks
| Benchmark | Gemini 3 Flash | Gemma 4 31B | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 27.4% | 29.4% | Gemma 4 31B leads |
| AA-GPQA DiamondSource | 81.2% | 85.7% | Gemma 4 31B leads |
| AA-HLESource | 14.1% | 22.7% | Gemma 4 31B leads |
| AA-Omniscience IndexSource | -3.6% | -45.4% | Gemini 3 Flash leads |
| AA-Omniscience AccuracySource | 45.5% | 19.9% | Gemini 3 Flash leads |
| AA-Omniscience Hallucination RateSource | 90.2% | 81.6% | Gemma 4 31B leads |
| GPQASource | — | 84.3% | Not comparable |
| MMLU-ProSource | — | 85.2% | Not comparable |
| HLESource | — | 26.5% | Not comparable |
| HLE w/o toolsSource | — | 19.5% | Not comparable |
| AA Openness IndexSource | — | 38.9% | Not comparable |
Math2 benchmarks
Multimodal3 benchmarks
Inst. Following1 benchmarks
| Benchmark | Gemini 3 Flash | Gemma 4 31B | Result |
|---|---|---|---|
| AA-IFBenchSource | 55.1% | 75.6% | Gemma 4 31B leads |
Frequently Asked Questions (3)
Can I compare Gemini 3 Flash and Gemma 4 31B 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 Gemini 3 Flash and Gemma 4 31B today?
Gemini 3 Flash: $0.50 input / $3.00 output per 1M tokens Gemma 4 31B: $0.00 input / $0.00 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
Self-host vs API cost
Estimates at 50,000 req/day · 1000 tokens/req average.
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