head-to-head

OpenAI: GPT-6 Luna Pro (batch) vs OpenAI: GPT Terra Latest

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-10-13.

OpenAI: GPT-6 Luna Pro (batch) OpenAI: GPT Terra Latest
Vendoropenai~openai
Quality Score100100
Input Price$0.05/M$2.00/M
Output Price$0.25/M$12.00/M
Context Window1,050,0001,050,000
Max Output128,000128,000
Tool Calling✓✓
Structured Output✓✓
Reasoning Mode✓✓
Vision✓✓
Audio--

The verdict

For a sample job of 1 million input tokens and 250,000 output tokens, GPT-6 Luna Pro (batch) costs $0.11 and GPT Terra Latest costs $5.00, so GPT-6 Luna Pro (batch) is about 44.4 times cheaper for the same work.

Both read up to 1,050,000 tokens at once, roughly 1,575 pages of text.

Across the 10 tasks where they differ, GPT-6 Luna Pro (batch) scores higher on 10 (SQL Generation, Code Completion, Code Documentation and others).

Pick GPT-6 Luna Pro (batch) if you need lower cost or the stronger all-round task scores.

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-6 Luna Pro (batch)OpenAI: GPT Terra Latest
SQL Generation 134 132
Code Completion 131 117
Code Documentation 131 129
Regex Writing 119 117
CSV / Spreadsheet Cleanup 134 132
JSON Extraction 131 121
Bulk Data Labeling 129 117
Long-Document Summarization 138 136
Short-Form Summarization 123 113
Blog Post Writing 122 120

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

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