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Independent model comparison

DeepSeek V3.2 vs GPT-5.6 Terra: evidence side by side

Compare the models using only evidence that can be identified and attributed. Exact benchmark matches appear first; independent facts and user reports remain separate and do not create an overall ranking.

Exact comparison coverage

1 benchmark record share an exact reviewed comparison key.

Evidence strength

Limited exact coverage

The page is useful for inspection but does not yet contain enough pair-native evidence for Search publication.

Models at a glance

Key differences

Detail DeepSeek V3.2 GPT-5.6 Terra
Provider

DeepSeek

OpenAI

Release date Shown only where an exact reviewed release date is available.

Not verified

Not verified

Exact benchmark coverage Only records carrying the same reviewed comparison identity are counted.

1 shared record

1 shared record

Price and speed appear only when an exact reviewed operational reference is attached to that model identity.

Primary comparison evidence

Exact matched benchmark evidence

1 exact match

A shared benchmark name is not enough. A result appears side by side only when both model records carry the same reviewed comparison key. Duplicate or unversioned records are omitted rather than guessed into alignment.

ROASBench

A 12-month performance-marketing simulation scored on business outcomes, planning, behavior, and persona fit.

DeepSeek V3.2

19.77

Average ROASBench score

Configuration: DeepSeek: DeepSeek V3.2

Spring Prompt · Reviewed public-catalogue SQLite projection · 12-month simulation

GPT-5.6 Terra

4 configurations

Average ROASBench score

Configuration: 4 configurations compared separately

Spring Prompt · Reviewed public-catalogue SQLite projection · 12-month simulation

Secondary context · not head-to-head

Independent signals for each model

The sources below evaluated or discussed each model independently. Putting them in adjacent columns makes them easier to inspect, but it does not make their metrics, samples, or observations directly comparable.

Independent early-test reports

Early technical field tests from X

Editor-paraphrased reports from independent authors in each model's fixed 14-day launch window. These selectively surfaced anecdotes are not direct head-to-head tests unless they also appear in the dedicated direct-report section above.

DeepSeek V3.2

Early technical field tests

Early DeepSeek V3.2 evidence covered two narrow reasoning checks. A procedurally generated, out-of-distribution logic benchmark produced a favorable result within its tested open-model set, while a separate user shared the output from one International Mathematical Olympiad challenge. Both are useful snapshots, but neither demonstrates tool-use reliability or consistent production behavior.

Source venue: X · window: 2025-12-01 to 2025-12-15 · 2 tests · 2 independent authors · 2 with a method or artifact · identity reviewed

GPT-5.6 Terra

No editor-reviewed X field-test paragraph is active for this model snapshot.

X field tests remain separate from Reddit community opinions, Artificial Analysis facts, and every scored benchmark.

How to read this comparison

Spring Prompt does not name an overall winner from unrelated benchmark scores, third-party metrics, Reddit opinions, or X field-test reports.

Different benchmarks measure different constructs and may use different populations, prompts, harnesses, model revisions, tools, and score scales. This page does not average those values or infer a winner from source coverage. Test both models on your own production work before making a consequential choice.