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gemini-3-pro-preview vs gpt-5.6-terra

Side-by-side comparison of gemini-3-pro-preview and gpt-5.6-terra: benchmarks, pricing, context window and capabilities. Both are accessible through Requesty's unified API. gpt-5.6-terra outperforms gemini-3-pro-preview on 4 of 5 shared benchmarks.

Benchmark comparison

Intelligence Indexreasoning
gemini-3-pro-preview32.4%
gpt-5.6-terra46.8%
Coding Indexcoding
gemini-3-pro-previewN/A
gpt-5.6-terra76.7%
Math Indexmath
gemini-3-pro-preview95.7%
gpt-5.6-terraN/A
GPQA Diamondreasoning
gemini-3-pro-preview90.8%
gpt-5.6-terra92.5%
AIME 2025math
gemini-3-pro-preview95.7%
gpt-5.6-terraN/A
LiveCodeBenchcoding
gemini-3-pro-preview91.7%
gpt-5.6-terraN/A
Terminal-Bench Hardagentic
gemini-3-pro-preview41.7%
gpt-5.6-terra57.6%
τ²-Benchagentic
gemini-3-pro-preview87.1%
gpt-5.6-terra86.3%
SciCodecoding
gemini-3-pro-previewN/A
gpt-5.6-terra55.0%
MMLU Proknowledge
gemini-3-pro-preview89.8%
gpt-5.6-terraN/A
Humanity's Last Examreasoning
gemini-3-pro-preview39.7%
gpt-5.6-terra42.9%

Scores sourced from official model cards, Artificial Analysis, and public leaderboards. Benchmarks measure specific skills and don't capture every aspect of model quality.

Pricing & specifications

gemini-3-pro-previewgpt-5.6-terra
Input price / 1M$2.00$2.00
Output price / 1M$12.00$12.00
Context window1.0M tokens1.1M tokens
Max output66K tokens128K tokens
Vision inputYesYes
Tool callingYesYes
ReasoningYesYes
Prompt cachingYesYes
Computer useN/AN/A
ProviderGoogle LLC (Gemini API)OpenAI Inc.

Questions people ask

Is gemini-3-pro-preview better than gpt-5.6-terra?
gpt-5.6-terra outperforms gemini-3-pro-preview on 4 of 5 shared benchmarks. See the benchmark comparison above for specifics: gemini-3-pro-preview and gpt-5.6-terra have different strengths across reasoning, coding, math and multimodal tasks.
Which is cheaper, gemini-3-pro-preview or gpt-5.6-terra?
gemini-3-pro-preview and gpt-5.6-terra have identical combined pricing.
Can I use gemini-3-pro-preview and gpt-5.6-terra through the same API?
Yes. Requesty provides a single OpenAI-compatible API that routes to both. Change just the "model" parameter to switch between "google/gemini-3-pro-preview" and "openai/gpt-5.6-terra", no other code changes needed.
What are the context windows?
gemini-3-pro-preview supports up to 1.0M tokens of context. gpt-5.6-terra supports up to 1.1M tokens. Longer context means you can feed larger documents or codebases in a single prompt, though quality often degrades past 128K for most models.

Switch between gemini-3-pro-preview and gpt-5.6-terra with one line of code

Requesty provides a single OpenAI-compatible API for 600+ models. Change the model parameter, not your code.