Model comparison
Gemini 3 Flash vs GPT-4.1 nano
Head-to-head evidence from 14 shared benchmark results across 7 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Gemini 3 Flash #52 (Supported); GPT-4.1 nano #170 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Gemini 3 Flash and GPT-4.1 nano share 14 comparable benchmark results. 1 of 8 categories are comparable. 5 results are unique to Gemini 3 Flash; 7 to GPT-4.1 nano.
Updated July 24, 2026- Shared results
- 14
- Gemini 3 Flash only
- 5
- GPT-4.1 nano only
- 7
- Comparable categories
- 1 / 8
Pick Gemini 3 Flash if you want the stronger benchmark profile. GPT-4.1 nano only becomes the better choice if you want the cheaper token bill.
Confidence note. This is a partial-evidence comparison with 14 shared benchmark results across 7 evidence categories; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
Gemini 3 Flash is clearly ahead on the BenchAlign aggregate, 59.66 to 41.14. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Gemini 3 Flash's sharpest advantage is in mathematics, where it averages 27.8 against 1. The single biggest benchmark swing on the page is FrontierMath v2 (Tiers 1-3), 35.640% to 1.034%.
Gemini 3 Flash is also the more expensive model on tokens at $0.50 input / $3.00 output per 1M tokens, versus $0.10 input / $0.40 output per 1M tokens for GPT-4.1 nano. That is roughly 7.5x on output cost alone.
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 | GPT-4.1 nano |
|---|---|---|---|
| Math | Gemini 3 Flash27.8 | Margin← 26.8 | GPT-4.1 nano1.0 |
| Knowledge | Gemini 3 FlashNot measured | MarginNo overlap | GPT-4.1 nano50.3 |
| Inst. Following | Gemini 3 FlashNot measured | MarginNo overlap | GPT-4.1 nano83.2 |
Decisive benchmark drivers
The largest measured benchmark gaps in this matchup, with exact reported values.
More
- Source ↗
FrontierMath v2 (Tiers 1-3)
MathA 35.640%B 1.034%Winner: Gemini 3 FlashΔ 34.6FrontierMath v2 (Tiers 1-3): Gemini 3 Flash scored 35.640%; GPT-4.1 nano scored 1.034%. Gemini 3 Flash wins this benchmark.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Gemini 3 Flash | GPT-4.1 nano | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Gemini 3 Flash$0.5 input / $3 output | GPT-4.1 nano$0.1 input / $0.4 output | GPT-4.1 nano has the lower combined listed price. |
| Generation speedtokens per second | Gemini 3 Flash159 tok/s | GPT-4.1 nano181 tok/s | GPT-4.1 nano has the higher measured throughput. |
| First-answer latencyseconds to first token | Gemini 3 Flash1.19 s | GPT-4.1 nano0.63 s | GPT-4.1 nano reaches the first token sooner. |
| Context windowmaximum listed tokens | Gemini 3 Flash1M | GPT-4.1 nano1M | Listed context windows are equal. |
Benchmark Deep Dive
Agentic7 benchmarks
| Benchmark | Gemini 3 Flash | GPT-4.1 nano | Result |
|---|---|---|---|
| Claw-EvalSource | 49.2% | — | Not comparable |
| τ²-bench resultsSource | 43.3% | 17.3% | Gemini 3 Flash leads |
| Gert LabsSource | 56.63% | — | Not comparable |
| JobBenchSource | 11.4% | — | Not comparable |
| AA Agentic IndexSource | — | 1.2% | Not comparable |
| GDPval-AASource | — | 0.0% | Not comparable |
| GDPval-AASource | — | 63 | Not comparable |
Coding3 benchmarks
Reasoning2 benchmarks
Knowledge8 benchmarks
| Benchmark | Gemini 3 Flash | GPT-4.1 nano | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 27.4% | 9.6% | Gemini 3 Flash leads |
| AA-GPQA DiamondSource | 81.2% | 51.2% | Gemini 3 Flash leads |
| AA-HLESource | 14.1% | 3.9% | Gemini 3 Flash leads |
| AA-Omniscience IndexSource | -3.6% | -56.4% | Gemini 3 Flash leads |
| AA-Omniscience AccuracySource | 45.5% | 13.3% | Gemini 3 Flash leads |
| AA-Omniscience Hallucination RateSource | 90.2% | 80.4% | GPT-4.1 nano leads |
| MMLUSource | — | 80.1% | Not comparable |
| GPQASource | — | 50.3% | Not comparable |
MathGemini 3 Flash wins2 benchmarks
Multimodal2 benchmarks
Frequently Asked Questions (2)
Which is better, Gemini 3 Flash or GPT-4.1 nano?
Gemini 3 Flash is ahead on BenchLM's BenchAlign leaderboard, 59.66 to 41.14. The biggest single separator in this matchup is FrontierMath v2 (Tiers 1-3), where the scores are 35.640% and 1.034%.
Which is better for math, Gemini 3 Flash or GPT-4.1 nano?
Gemini 3 Flash has the edge for math in this comparison, averaging 27.8 versus 1. Inside this category, FrontierMath v2 (Tiers 1-3) is the benchmark that creates the most daylight between them.