Which coding agents support which models

“GPT-6.1 Sol is available to Copilot Pro+, Max, Business, and Enterprise users.”

“Added GPT-6.1 Sol as the default model in the bundled catalog and Amazon Bedrock Mantle and Runtime catalogs. (#49323, #49342)”

“GPT-6.1 Sol becomes the default model for OpenAI, OpenRouter, GitHub Copilot, Cortecs, Eden AI, Kilo Gateway, both LLM Gateway providers, NanoGPT, OpenCode Zen, and Requesty.”

“Add support for GPT-6.1 Sol in model selection”

“Added BYOK support for GPT-6.1 Sol with an OpenAI API key. (#64968”

“Support hyphenated GPT 6.1 Sol effort aliases #12689”

“GPT-6 Astra is generally available in GitHub Copilot”

“Added support for configuring GPT-6-Astra through the API without changing the default model or showing it in the model picker. (#42605)”

“Support GPT-6 Astra models #11869”

“Several move off Claude Fable 5.1 to GPT-6 Astra, Vertex goes to Gemini 3.8 Flash, and OpenRouter/Kilo to Inception Mercury 2.5.”

“Added BYOK support for GPT-6 Astra with an OpenAI API key. (#64420)”

“Model picker updates the recommended list to prioritize GPT-6.1 Sol, GPT-6 Astra/Luna, and Claude 5.5 models.”

“feat: support GPT-5 and GPT-6 reasoning effort configuration by @wenshao in https://github.com/QwenLM/qwen-code/pull/11295”

“Added a reasoning_effort setting for GPT-5 models and disabled temperature by default for the GPT-5 family.”

“OpenAI’s GPT-6 Sol and GPT-6 Luna now available”

“Choose GPT-6 Sol or GPT-6 Luna from the model picker.”

“Support for Opus 5.5, GPT-6-sol, and GPT-6-luna models #12447”

“Added BYOK support for GPT-6 Sol and GPT-6 Luna with an OpenAI API key. (#64628)”

“Add GPT-6 Sol and GPT-6 Luna to the model picker when available”

“docs(web): add Claude Opus 5.5, GPT 6 Sol, and GPT 6 Luna to Zen (#50708)”

“OpenAI’s GPT-6 Sol and GPT-6 Luna now available”

“Choose GPT-6 Sol or GPT-6 Luna from the model picker.”

“Support for Opus 5.5, GPT-6-sol, and GPT-6-luna models #12447”

“Added BYOK support for GPT-6 Sol and GPT-6 Luna with an OpenAI API key. (#64628)”

“Add GPT-6 Sol and GPT-6 Luna to the model picker when available”

“docs(web): add Claude Opus 5.5, GPT 6 Sol, and GPT 6 Luna to Zen (#50708)”

“Changed the default model for OpenAI subscription users to GPT-5.6 Sol. (#62477)”

“New default model - Sessions with no model selected now default to GPT-5.6 Sol”

“GPT-5.6 Sol”

“#47130 Remove the ultrafast service tier from gpt-5.6-sol @andrewgu-oai”

“GPT-5 mini”

“Added native support for AWS Bedrock's Mantle endpoint, enabling GPT-5.5, GPT-5.4, and Grok 4.3 through the Amazon Bedrock provider. (#60480)”

“GPT-5.4”

“The model rules also match what the backend now accepts: gpt-5.4 and gpt-5.4-mini were retired for ChatGPT accounts on 2026-08-31 and are gone, the default moves to gpt-5.6-terra, and every Codex model is capped at the real 400K/272K/128K backend budget instead of inheriting the API's 1.05M limits”

“GPT-5.4 mini”

“Added native support for AWS Bedrock's Mantle endpoint, enabling GPT-5.5, GPT-5.4, and Grok 4.3 through the Amazon Bedrock provider. (#60480)”

“GPT-5.5”

“Added GPT 5.6 Luna, GPT 5.6 Terra, GPT 5.6 Sol, and Grok 4.5 to OpenCode Zen. (#60852”

“GPT-5.6 Luna”

“Added GPT 5.6 Luna, GPT 5.6 Terra, GPT 5.6 Sol, and Grok 4.5 to OpenCode Zen. (#60852”

“The model rules also match what the backend now accepts: gpt-5.4 and gpt-5.4-mini were retired for ChatGPT accounts on 2026-08-31 and are gone, the default moves to gpt-5.6-terra, and every Codex model is capped at the real 400K/272K/128K backend budget instead of inheriting the API's 1.05M limits”

“Added the Astra system prompt for GPT-6 models.”

“feat: support GPT-5 and GPT-6 reasoning effort configuration by @wenshao in https://github.com/QwenLM/qwen-code/pull/11295”

“Updated Azure AI support for GPT-5.6.”

“Add GPT-5.6 ChatGPT subscription models.”

“Models marked “Devin Local only” (including every GPT-5.6 variant) now appear disabled in Cascade’s model picker with a tooltip pointing you to Devin Local, rather than running degraded in Cascade.”

“Added support for GPT-5.6's 1M-token context window on Amazon Bedrock. (#63069”

“Drop unsupported gpt-5.3-codex from chatgpt_codex provider #10271”