GPT-6.1 Terra coding benchmark
OpenAI · API model openai/gpt-6.1-terra · via OpenRouter · Results published 27 Oct 2026 · Benchmark v4
How GPT-6.1 Terra performed
GPT-6.1 Terra by OpenAI took the PomBench AI coding benchmark: every model gets the same prompt and writes self-contained browser code for a twelve-second scene: a Pomeranian runs across a backyard, jumps a puddle, enters its doghouse, retrieves a bone and turns toward the viewer. The video above is an independent offline browser recording of the code GPT-6.1 Terra returned, captured at 960 × 540 and 30 fps, with no organizer edits to the code.
In this GPT-6.1 Terra coding test the model produced 6,428 output tokens, including provider-reported reasoning (rank 31 of 48 by output tokens), and the known API cost was $0.0347 (rank 21 of 47, cheapest first). Is GPT-6.1 Terra good at coding? One task cannot answer that on its own, so this LLM coding benchmark lets you watch the result instead of reading a score: check the gait, the puddle jump and reflection, the doorway occlusion and whether the bone stays in the dog's mouth. This run was served through OpenRouter with one fixed upstream provider and fallbacks disabled.
Then compare GPT-6.1 Terra vs GPT-6.1 Sol and GPT-5.6 Terra below, or open the AI model comparison to play up to four models on one synchronized timeline.
GPT-6.1 Terra vs GPT-6.1 Sol, GPT-5.6 Terra and Claude Opus 5.5
- GPT-6.1 Terra vs GPT-6.1 Sol: 6,428 vs 8,989 output tokens; known API cost $0.0347 vs $0.0950. Watch side by side
- GPT-6.1 Terra vs GPT-5.6 Terra: 6,428 vs 8,121 output tokens; known API cost $0.0347 vs $0.1183. Watch side by side
- GPT-6.1 Terra vs Claude Opus 5.5: 6,428 vs 8,093 output tokens; known API cost $0.0347 vs $0.1751. Watch side by side
GPT-6.1 Terra code
GPT-6.1 Terra wrote its own native browser animation code from the same prompt as every other model. One execution repair is available for empty, truncated or unexecutable code; the final response is kept, not a best-of selection.