Pairwise benchmark snapshot · Aug 1, 2026
In this head-to-head showdown, Gemini 3 Flash delivers higher overall intelligence and human-preferred responses (Elo 1,495 vs 1,350), while Gemini 3 Flash leads in SWE-bench software engineering benchmarks (75.8%), while Gemini 3 Flash is more budget-friendly at $0.6/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.
9 direct benchmark disciplines evaluated across capability, speed, and cost
Fast Google frontier-adjacent model. Near-top official SWE-bench at a fraction of Opus price.
Currently comparing Gemini 2.5 Pro vs Gemini 3 Flash. Alternative family tiers available.
Δ 145 Arena Elo pts
190 tok/s
$0.6 / 1M output
Relative percentile scores computed across all active models in the benchmark catalog.
Comparing top Western standard models with China's leading frontier rival across 6 skill dimensions. Tap any spoke or dot to inspect.
Category wins across reasoning intelligence, generation speed, and token cost.
Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy
Generation throughput and time to first token responsiveness
Cost per million tokens and max context window length
| Benchmark | Gemini 2.5 Pro | Gemini 3 Flash | Advantage Delta |
|---|---|---|---|
| Preference Elo | +145 | ||
| Coding Elo | — | — | |
| LiveBench | +9.7% | ||
| SWE-bench | +12% | ||
| GPQA Diamond | +2% | ||
| Time to first token | +115 ms | ||
| Output speed | 95 tok/s | 190 tok/s | +95 tok/s |
| Input price | $1.25/1M | $0.15/1M | +$1.1/1M |
| Output price | $0.6/1M | +$4.4/1M | |
| Context window | +1M |
Simulate monthly production API costs in USD (US Dollar).
Gemini 3 Flash is estimated to save $104.50/month ($1,254/year).
Higher SWE-bench (75.8%).
Lower output list price ($0.6/1M).
Lower TTFT (95 ms).
Larger window (2M).
Both accept images. Defaulting to the higher-Elo side (Gemini 3 Flash).
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | Gemini 3 Flash | Higher SWE-bench (75.8%). |
| High-volume chat | Gemini 3 Flash | Lower output list price ($0.6/1M). |
| Voice / low-latency UI | Gemini 3 Flash | Lower TTFT (95 ms). |
| Long-document RAG | Gemini 2.5 Pro | Larger window (2M). |
| Screenshots / vision | Gemini 3 Flash | Both accept images. Defaulting to the higher-Elo side (Gemini 3 Flash). |
March 2026 speed SKU. Still a useful cheap-coding compare even after 3.6/3.7 Flash.
2025-03 row. 3.x Pro replaced it. Kept for old “2.5 pro vs gpt-4o” inbound.
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