head-to-head

OpenAI: GPT-5.6 Terra Pro vs Google: Gemma 4 31B

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-09-23.

OpenAI: GPT-5.6 Terra Pro Google: Gemma 4 31B
Vendoropenaigoogle
Quality Score100100
Benchmark Score-53.7
Input Price$2.00/M$0.09/M
Output Price$12.00/M$0.34/M
Context Window1,050,000262,144
Max Output128,00016,384
Tool Calling
Structured Output
Reasoning Mode
Vision
Audio--
Benchmark Scores
ai_index-31.3
eqbench-70.8

Who wins by task?

TaskOpenAI: GPT-5.6 Terra ProGoogle: Gemma 4 31B
SQL Generation 132 139
Code Review 132 140
Code Completion 117 131
Code Refactoring 136 141
Bug Fixing 136 144
Unit Test Generation 124 130
Code Documentation 129 134
Regex Writing 117 125
CI/CD Pipelines 120 126
Frontend Component Design 122 128
Data Analysis 124 132
CSV / Spreadsheet Cleanup 132 133
ETL Scripting 128 133
JSON Extraction 121 131
Bulk Data Labeling 117 129
OCR / Document Parsing 131 131
Table Extraction from PDFs 131 131
Long-Document Summarization 136 143
Short-Form Summarization 113 126
Blog Post Writing 120 127

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

Related comparisons

Anthropic: Claude Haiku Latest vs Google: Gemma 4 31B Anthropic: Claude Opus 5 (batch) vs OpenAI: GPT-5.6 Terra Pro Anthropic: Claude Sonnet 5 vs Google: Gemma 4 31B Anthropic: Claude Sonnet Latest vs Google: Gemma 4 31B ByteDance Seed: Seed-2.0-Code vs OpenAI: GPT-5.6 Terra Pro ByteDance Seed: Seed 2.1 Turbo vs OpenAI: GPT-5.6 Terra Pro DeepSeek: DeepSeek V4.1 Flash vs OpenAI: GPT-5.6 Terra Pro DeepSeek: DeepSeek V4 Flash Vision Exp vs OpenAI: GPT-5.6 Terra Pro

The Model Movers Report

One email every Friday, built from this site's own rankings: the current top five by benchmark score, every model released in the last seven days, and one note worked out from that week's numbers. You can unsubscribe from any issue with one click.