GPT-5.6 Terra vs Gemini 3.5 Flash
Compare GPT-5.6 Terra from OpenAI and Gemini 3.5 Flash from Google 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
GPT-5.6 Terra vs Gemini 3.5 Flash at a glance
| Attribute | GPT-5.6 Terra | Gemini 3.5 Flash |
|---|---|---|
| Input price | $2/M tokens | $1.50/M tokens |
| Output price | $12/M tokens | $9/M tokens |
| Context window | 1,050,000 tokens | 1,048,576 tokens |
| Intelligence Index | Not available | Not available |
| Coding Index | 70.6 | 70.1 |
| Agentic Index | 41.4 | 26.0 |
| Latency (p50) | 1.68 s | 1.48 s |
| Throughput (p50) | 48.0 tok/s | 169.0 tok/s |
| Provided by | OpenAI | |
| Model page | GPT-5.6 Terra model details, providers and pricing | Gemini 3.5 Flash model details, providers and pricing |
Benchmark data updated
Frequently asked questions
Which has the longer context window, GPT-5.6 Terra or Gemini 3.5 Flash?
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, GPT-5.6 Terra or Gemini 3.5 Flash?
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, GPT-5.6 Terra or Gemini 3.5 Flash?
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.