Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)
This page compares Gemini 3.6 Flash (Google) and OpenAI: GPT-5.4 Pro (OpenAI) using the latest snapshots we have as of Aug 17, 2026. Gemini 3.6 Flash wins on output price at $3.75/1M. OpenAI: GPT-5.4 Pro has the larger context window (1.1M tokens). Every cell below is a dated snapshot from a named public source — we do not invent missing scores, and we do not run SWE-bench ourselves.
Google Jul 21 workhorse. Now shares the 3.7 Flash introductory $0.75/$3.75 rate through Dec 31 2026.
OpenAI
OpenAI: GPT-5.4 ProAuto-discovered from OpenRouter (openai/gpt-5.4-pro). Preview until a second source matches.
Instant pairwise benchmark recalculation across 400+ LLMs
Category wins across intelligence, speed, and pricing efficiency.
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
Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.
No shared data
No shared data
$176.25/1M cheaper
Simulate monthly production API costs in USD (US Dollar).
Gemini 3.6 Flash is estimated to save $3,667.50/month ($44,010/year).
Need SWE-bench on both sides.
Lower output list price ($3.75/1M).
Need TTFT on both sides.
Larger window (1.1M).
Gemini 3.6 Flash is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | insufficient data | Need SWE-bench on both sides. |
| High-volume chat | Gemini 3.6 Flash | Lower output list price ($3.75/1M). |
| Voice / low-latency UI | insufficient data | Need TTFT on both sides. |
| Long-document RAG | OpenAI: GPT-5.4 Pro | Larger window (1.1M). |
| Screenshots / vision | Gemini 3.6 Flash | Gemini 3.6 Flash is the side marked multimodal in the catalog. |
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The real PNG is generated at /compare/gemini-3-6-flash-vs-gpt-5-4-pro/opengraph-image for crawlers.
Verified head-to-head card
