head-to-head

OpenAI: GPT-5.6 Terra vs NVIDIA: Nemotron 3 Nano Omni (free)

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-11-07.

OpenAI: GPT-5.6 Terra NVIDIA: Nemotron 3 Nano Omni (free)
Vendoropenainvidia
Quality Score100100
Benchmark Score93.0-
Input Price$2.00/MFree
Output Price$12.00/MFree
Context Window1,050,000256,000
Max Output128,00065,536
Tool Calling✓✓
Structured Output✓-
Reasoning Mode✓✓
Vision✓✓
Audio-✓
Benchmark Scores
ai_index90.7-
ai_index_agentic78.2-
ai_index_coding100.0-

The verdict

For a sample job of 1 million input tokens and 250,000 output tokens, Nemotron 3 Nano Omni (free) costs $0 and GPT-5.6 Terra costs $5.00, so Nemotron 3 Nano Omni (free) is free for the same work.

GPT-5.6 Terra reads up to 1,050,000 tokens at once, roughly 1,575 pages of text, against about 384 pages for Nemotron 3 Nano Omni (free).

Only GPT-5.6 Terra offers structured output; only Nemotron 3 Nano Omni (free) offers audio input and video input.

Across the 20 tasks where they differ, GPT-5.6 Terra scores higher on 17 (SQL Generation, Code Review, Code Refactoring and others), Nemotron 3 Nano Omni (free) on 3 (Code Completion, Bulk Data Labeling, Short-Form Summarization).

GPT-5.6 Terra was released in July 2026 and Nemotron 3 Nano Omni (free) in April 2026.

Pick GPT-5.6 Terra if you need long documents, structured output or the stronger all-round task scores; pick Nemotron 3 Nano Omni (free) if you need lower cost, audio input or video input.

Costs use current list prices per million tokens; page counts assume about 0.75 words per token and 500 words per page.

Who wins by task?

TaskOpenAI: GPT-5.6 TerraNVIDIA: Nemotron 3 Nano Omni (free)
SQL Generation 171 123
Code Review 168 122
Code Completion 119 129
Code Refactoring 165 123
Bug Fixing 181 130
Unit Test Generation 155 113
Code Documentation 141 126
Regex Writing 135 120
CI/CD Pipelines 145 113
Frontend Component Design 147 118
Data Analysis 171 120
CSV / Spreadsheet Cleanup 153 116
ETL Scripting 155 118
JSON Extraction 138 120
Bulk Data Labeling 123 126
OCR / Document Parsing 147 120
Table Extraction from PDFs 147 120
Long-Document Summarization 159 129
Short-Form Summarization 122 124
Blog Post Writing 140 119

Scores reflect capability match + benchmark data + pricing for each task. Methodology →

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