CometAPI Update: Gemini 4 Argon Launch & Model Retirement

[cometapi-announcer[bot]]

2026-10-14

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Gemini 4 Argon Now Available

Model ID: gemini-4-argon

Google’s Gemini 4 flagship model for complex reasoning, agentic coding, and multimodal understanding. Supports Gemini API and OpenAI Chat API formats.

Model Retirement & Recommended Replacements

The following OpenAI model snapshots will be shut down on January 14, 2027. No automatic migration will be performed — please migrate before the shutdown date to avoid service interruptions.

Model	Shutdown Date	Recommended Replacement
gpt-4o-2024-08-06	2027-01-14	gpt-6.1-sol
gpt-4o-2024-11-20	2027-01-14	gpt-6.1-sol
gpt-4o-mini-2024-07-18	2027-01-14	gpt-6-luna
gpt-4.1-2025-04-14	2027-01-14	gpt-6.1-sol
gpt-4.1-mini-2025-04-14	2027-01-14	gpt-6-luna

Choose gpt-6.1-sol for complex coding and professional work, or gpt-6-luna for efficient, high-volume workloads. Test API compatibility and output behavior before migration.

Developer Documentation

• Gemini API format
• OpenAI Chat API format