Gemini 3.1 Pro vs GPT-5.6 Luna Pro for venture capital
As of October 11, 2026, Gemini 3.1 Pro ranks higher for company discovery, and GPT-5.6 Luna Pro ranks higher for market maps and investment memos. In 31 judged battles between them, Gemini 3.1 Pro won 9 and GPT-5.6 Luna Pro won 18, and 4 were ties. Gemini 3.1 Pro costs about 3 cents per answer, and GPT-5.6 Luna Pro under 1 cent.
Task scores are out of 100 and blend quality 70%, cost 15% and speed 15%.
When they met
- Investment memoPhysical Intelligence — robot foundation model lab (π0) with a who's-who teamGPT-5.6 Luna Pro won
- Investment memoCognition — maker of Devin, the autonomous software engineer, acquirer of WindsurfGPT-5.6 Luna Pro won
- Investment memoAbridge — AI clinical documentation for health systemsGPT-5.6 Luna Pro won
- Investment memoRamp — corporate cards and finance automation, now pushing an AI agendaGPT-5.6 Luna Pro won
- Investment memoLangChain — from OSS agent framework to LangSmith observability platformGPT-5.6 Luna Pro won
- Investment memoVercel — frontend cloud + v0 AI app generation, riding the Next.js ecosystemGPT-5.6 Luna Pro won
- Investment memoAnduril — defense tech prime challenger: autonomy, drones, Lattice OSTie
- Investment memoLinear — project management tool with cult developer following, moving into AIGPT-5.6 Luna Pro won
Questions about Gemini 3.1 Pro and GPT-5.6 Luna Pro
Is Gemini 3.1 Pro better than GPT-5.6 Luna Pro for venture capital work?
As of October 11, 2026, Gemini 3.1 Pro ranks higher for company discovery, and GPT-5.6 Luna Pro ranks higher for market maps and investment memos. In 31 judged battles between them, Gemini 3.1 Pro won 9 and GPT-5.6 Luna Pro won 18, and 4 were ties. Gemini 3.1 Pro costs about 3 cents per answer, and GPT-5.6 Luna Pro under 1 cent.
Which is better for company discovery, Gemini 3.1 Pro or GPT-5.6 Luna Pro?
Gemini 3.1 Pro. On vcrouter's company discovery board it ranks 2nd of 5 with a score of 58 out of 100, and GPT-5.6 Luna Pro ranks 3rd with 55. In 10 direct battles between them, Gemini 3.1 Pro won 8 and GPT-5.6 Luna Pro won 0, and 2 were ties.
Which is better for market maps, Gemini 3.1 Pro or GPT-5.6 Luna Pro?
GPT-5.6 Luna Pro. On vcrouter's market map board it ranks 2nd of 5 with a score of 61 out of 100, and Gemini 3.1 Pro ranks 5th with 38. In 10 direct battles between them, GPT-5.6 Luna Pro won 10 and Gemini 3.1 Pro won 0.
Which is better for investment memos, Gemini 3.1 Pro or GPT-5.6 Luna Pro?
GPT-5.6 Luna Pro. On vcrouter's investment memo board it ranks 1st of 5 with a score of 65 out of 100, and Gemini 3.1 Pro ranks 5th with 41. In 11 direct battles between them, GPT-5.6 Luna Pro won 8 and Gemini 3.1 Pro won 1, and 2 were ties.
Which is cheaper, Gemini 3.1 Pro or GPT-5.6 Luna Pro?
GPT-5.6 Luna Pro. It costs under 1 cent per answer on vcrouter's tasks, and Gemini 3.1 Pro costs about 3 cents, about 3 times as much.
Which is faster, Gemini 3.1 Pro or GPT-5.6 Luna Pro?
Gemini 3.1 Pro. Its median answer takes 22 seconds, and GPT-5.6 Luna Pro takes 31.