Pairwise benchmark snapshot · Aug 16, 2026
In this head-to-head showdown, Gemini 3.6 Pro delivers higher overall intelligence and human-preferred responses (Elo 1,570 vs 1,548), while Gemini 3.6 Pro leads in SWE-bench software engineering benchmarks (74.6%), while Gemini 3.6 Pro is more budget-friendly at $5/1M per 1M output tokens, while GPT-5.6 Terra provides faster response streaming (128 tok/s). Review the complete breakdown below to determine which model best fits your performance and budget requirements.
10 direct benchmark disciplines evaluated across capability, speed, and cost
Current Google Pro-class multimodal model. Long context, strong coding, billed like the 3.x Pro tier.
OpenAI 5.6 mid tier. Official API $2/$12 per 1M after the Jul 30 2026 price cut.
Currently comparing Gemini 3.6 Pro vs GPT-5.6 Terra. Alternative family tiers available.
Simulate accuracy gains vs added response time & token cost
Reasoning models “think before answering” by generating internal reasoning tokens. Higher effort improves math, coding, and logic accuracy, but increases response delay and token costs.
Δ 22 Arena Elo pts
128 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 3.6 Pro | GPT-5.6 Terra | Advantage Delta |
|---|---|---|---|
| Preference Elo | +22 | ||
| Coding Elo | +24 | ||
| LiveBench | +2.7% | ||
| SWE-bench | +4.2% | ||
| GPQA Diamond | +2.4% | ||
| Time to first token | +45 ms | ||
| Output speed | 102 tok/s | 128 tok/s | +26 tok/s |
| Input price | $1.25/1M | +$0.75/1M | |
| Output price | +$7/1M | ||
| Context window | +1M |
Simulate monthly production API costs in USD (US Dollar).
Gemini 3.6 Pro is estimated to save $131.25/month ($1,575/year).
Higher SWE-bench (74.6%).
Lower output list price ($5/1M).
Lower TTFT (160 ms).
Larger window (2M).
Both accept images. Defaulting to the higher-Elo side (Gemini 3.6 Pro).
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | Gemini 3.6 Pro | Higher SWE-bench (74.6%). |
| High-volume chat | Gemini 3.6 Pro | Lower output list price ($5/1M). |
| Voice / low-latency UI | GPT-5.6 Terra | Lower TTFT (160 ms). |
| Long-document RAG | Gemini 3.6 Pro | Larger window (2M). |
| Screenshots / vision | Gemini 3.6 Pro | Both accept images. Defaulting to the higher-Elo side (Gemini 3.6 Pro). |
3.7 Flash vs 3.6 Pro is the current Google volume-versus-upgrade pair.
Terra is OpenAI’s Sonnet-class invoice. Use it when Sol is too expensive and Luna is too small.
Top Anthropic vs top Google. Usually Opus 5 vs 3.6 Pro. Two different invoices.
Hub remaps to top Google vs top OpenAI Elo. Usually 3.6 Pro vs Sol. Window vs price is the plot.
No comments posted on this matchup yet. Be the first to share an evaluation note!
Dynamic OpenGraph banner generated at /compare/gemini-3-6-pro-vs-gpt-5-6-terra/opengraph-image
Verified Head-to-Head Telemetry
compare · Aug 13, 2026
Gemini Flash vs Pro: when Flash is the whole product
price · Jul 30, 2026
GPT-5.6 Terra after the Jul 30 cut: $2/$12 mid-tier
compare · Jul 24, 2026
Claude vs Gemini: coding, Elo, and output price — not a brand mashup
compare · Jul 16, 2026
Gemini vs GPT: long context versus the OpenAI flagship invoice