Gemini 3.5 Flash vs GPT-5.6 Terra
Compare Gemini 3.5 Flash from Google and GPT-5.6 Terra from OpenAI on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.
Overview
Analysis
Gemini 3.5 Flash vs GPT-5.6 Terra at a glance
| Attribute | Gemini 3.5 Flash | GPT-5.6 Terra |
|---|---|---|
| Input price | $1.50/M tokens | $2/M tokens |
| Output price | $9/M tokens | $12/M tokens |
| Context window | 1,048,576 tokens | 1,050,000 tokens |
| Intelligence Index | Not available | Not available |
| Coding Index | 70.1 | 70.6 |
| Agentic Index | 26.0 | 41.4 |
| Latency (p50) | 1.48 s | 1.68 s |
| Throughput (p50) | 169.0 tok/s | 48.0 tok/s |
| Provided by | OpenAI | |
| Model page | Gemini 3.5 Flash model details, providers and pricing | GPT-5.6 Terra model details, providers and pricing |
Benchmark data updated
Frequently asked questions
Which has the longer context window, Gemini 3.5 Flash or GPT-5.6 Terra?
GPT-5.6 Terra has the longer context window at 1,050,000 tokens, compared with 1,048,576 tokens for Gemini 3.5 Flash.
Which is faster, Gemini 3.5 Flash or GPT-5.6 Terra?
Gemini 3.5 Flash is faster on OpenRouter, generating a median 169.0 tokens per second compared with 48.0 tokens per second for GPT-5.6 Terra.
Which scores higher on coding, Gemini 3.5 Flash or GPT-5.6 Terra?
GPT-5.6 Terra scores higher on coding, with an Artificial Analysis Coding Index of 70.6 compared with 70.1 for Gemini 3.5 Flash.