token.app › Compare › Gemini 3 Flash Preview vs GPT-5.6 Terra
Gemini 3 Flash Preview vs GPT-5.6 Terra
GPT-5.6 Terra leads on 4 of 5 shared benchmarks. Gemini 3 Flash Preview is 2.0× cheaper per token on a blended 3:1 basis. GPT-5.6 Terra accepts the larger context window (1.1M).
Head to head
Blended price uses a 3:1 input:output mix
| Gemini 3 Flash Preview | GPT-5.6 Terra | |
|---|---|---|
| Provider | OpenAI | |
| Input $/1M | $0.500 | $1.00 |
| Output $/1M | $3.00 | $6.00 |
| Blended $/1M | $1.13 | $2.25 |
| Context window | 1.0M | 1.1M |
| Max output | 66K | 128K |
| Released | Dec 2025 | Jul 2026 |
| Licence | Proprietary | Proprietary |
| GPQA Diamond | 89.4% | 93.3% |
| FrontierMath T1–3 | 51.2% | 86.0% |
| FrontierMath T4 | 17.1% | 70.7% |
| SimpleQA Verified | 67.4% | 43.1% |
| OTIS Mock AIME | 95.6% | 99.7% |
Benchmark scores independently run and published by Epoch AI, 'AI Benchmarking Hub', used under CC BY 4.0. Only benchmarks with a score for BOTH models are compared.
Choose Gemini 3 Flash Preview if…
- Costs less per token — $1.13 vs $2.25 blended
- Higher SimpleQA Verified (67.4% vs 43.1%)
Choose GPT-5.6 Terra if…
- Higher GPQA Diamond (93.3% vs 89.4%)
- Higher FrontierMath T1–3 (86.0% vs 51.2%)
- Higher FrontierMath T4 (70.7% vs 17.1%)
- Higher OTIS Mock AIME (99.7% vs 95.6%)
- Larger context window (1.1M)
- Newer model (released Jul 2026)
FAQ
Which is better, Gemini 3 Flash Preview or GPT-5.6 Terra?
Across the 5 benchmarks both models have independently-run scores for, Gemini 3 Flash Preview leads on 1 and GPT-5.6 Terra leads on 4. Benchmarks are one input — price and context window are on this page too.
Is Gemini 3 Flash Preview cheaper than GPT-5.6 Terra?
Gemini 3 Flash Preview is cheaper: $1.13 versus $2.25 per million tokens blended at 3:1 input:output. Input alone: $0.500 vs $1.00. Output alone: $3.00 vs $6.00.
What context windows do Gemini 3 Flash Preview and GPT-5.6 Terra have?
Gemini 3 Flash Preview: 1,048,576 tokens. GPT-5.6 Terra: 1,050,000 tokens.
Who makes Gemini 3 Flash Preview and GPT-5.6 Terra?
Gemini 3 Flash Preview is made by Google. GPT-5.6 Terra is made by OpenAI.
Related comparisons
Gemini 3 Flash Preview full details
GPT-5.6 Terra full details
Gemini 3 Flash Preview vs Ling 3.0 Tiny (free)
Gemini 3 Flash Preview vs Muse Spark 1.2
Gemini 3 Flash Preview vs Qwen3.8 Max
Gemini 3 Flash Preview vs DeepSeek V4 Flash Latest
Gemini 3 Flash Preview vs DeepSeek V4 Flash 0731
Gemini 3 Flash Preview vs Inkling Small