Pairwise benchmark snapshot · Aug 16, 2026
In this head-to-head showdown, GPT-5.6 Terra delivers higher overall intelligence and human-preferred responses (Elo 1,548 vs 1,490), while GPT-5.6 Terra leads in SWE-bench software engineering benchmarks (70.4%), while Gemini 2.0 Flash Thinking is more budget-friendly at $0.4/1M 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
Google experimental reasoning model that visualizes thoughts in real-time.
OpenAI 5.6 mid tier. Official API $2/$12 per 1M after the Jul 30 2026 price cut.
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 58 Arena Elo pts
128 tok/s
$0.4 / 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 2.0 Flash Thinking | GPT-5.6 Terra | Advantage Delta |
|---|---|---|---|
| Preference Elo | +58 | ||
| Coding Elo | +27 | ||
| LiveBench | +2.1% | ||
| SWE-bench | +3.6% | ||
| GPQA Diamond | +1% | ||
| Time to first token | +60 ms | ||
| Output speed | 115 tok/s | 128 tok/s | +13 tok/s |
| Input price | $0.1/1M | +$1.9/1M | |
| Output price | $0.4/1M | +$11.6/1M | |
| Context window | +49k |
Simulate monthly production API costs in USD (US Dollar).
Gemini 2.0 Flash Thinking is estimated to save $240.50/month ($2,886/year).
Higher SWE-bench (70.4%).
Lower output list price ($0.4/1M).
Lower TTFT (160 ms).
Larger window (1M).
Both accept images. Defaulting to the higher-Elo side (GPT-5.6 Terra).
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | GPT-5.6 Terra | Higher SWE-bench (70.4%). |
| High-volume chat | Gemini 2.0 Flash Thinking | Lower output list price ($0.4/1M). |
| Voice / low-latency UI | GPT-5.6 Terra | Lower TTFT (160 ms). |
| Long-document RAG | Gemini 2.0 Flash Thinking | Larger window (1M). |
| Screenshots / vision | GPT-5.6 Terra | Both accept images. Defaulting to the higher-Elo side (GPT-5.6 Terra). |
No comments posted on this matchup yet. Be the first to share an evaluation note!
Dynamic OpenGraph banner generated at /compare/gemini-2-flash-thinking-vs-gpt-5-6-terra/opengraph-image
Verified Head-to-Head Telemetry