Pairwise benchmark snapshot · Aug 1, 2026
In this head-to-head showdown, Grok 3 delivers higher overall intelligence and human-preferred responses (Elo 1,405 vs 1,260), while Grok 3 leads in SWE-bench software engineering benchmarks (51.4%), while Gemini 1.5 Pro is more budget-friendly at $5/1M per 1M output tokens, while Grok 3 provides faster response streaming (88 tok/s). 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
First million-token Gemini Pro. Baseline for 1.5 vs 2.5 vs 3.x Pro.
Previous xAI generation before Grok 4. Kept for grok 3 vs grok 4.
Δ 145 Arena Elo pts
88 tok/s
$5 / 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 1.5 Pro | Grok 3 | Advantage Delta |
|---|---|---|---|
| Preference Elo | +145 | ||
| LiveBench | +11% | ||
| SWE-bench | +13.4% | ||
| GPQA Diamond | +16.2% | ||
| Time to first token | +10 ms | ||
| Output speed | 70 tok/s | 88 tok/s | +18 tok/s |
| Input price | $1.25/1M | +$1.75/1M | |
| Output price | +$10/1M | ||
| Context window | +1.9M |
Simulate monthly production API costs in USD (US Dollar).
Gemini 1.5 Pro is estimated to save $211.25/month ($2,535/year).
Higher SWE-bench (51.4%).
Lower output list price ($5/1M).
Lower TTFT (240 ms).
Larger window (2M).
Both accept images. Defaulting to the higher-Elo side (Grok 3).
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | Grok 3 | Higher SWE-bench (51.4%). |
| High-volume chat | Gemini 1.5 Pro | Lower output list price ($5/1M). |
| Voice / low-latency UI | Gemini 1.5 Pro | Lower TTFT (240 ms). |
| Long-document RAG | Gemini 1.5 Pro | Larger window (2M). |
| Screenshots / vision | Grok 3 | Both accept images. Defaulting to the higher-Elo side (Grok 3). |
No comments posted on this matchup yet. Be the first to share an evaluation note!
Dynamic OpenGraph banner generated at /compare/gemini-1-5-pro-vs-grok-3/opengraph-image
Verified Head-to-Head Telemetry