npm install -g @openai/codex

codex --version

mkdir -p ~/.codex && cat > ~/.codex/config.toml <<'EOF'
model_provider = "syon"
model = "gpt-5.6-sol"
model_reasoning_effort = "high"
[model_providers.syon]
name = "Syon"
base_url = "https://api.syon.ai/v1"
env_key = "OPENAI_API_KEY"
wire_api = "responses"
EOF

New-Item -ItemType Directory -Force -Path "$HOME\.codex" | Out-Null
@'
model_provider = "syon"
model = "gpt-5.6-sol"
model_reasoning_effort = "high"

[model_providers.syon]
name = "Syon"
base_url = "https://api.syon.ai/v1"
env_key = "OPENAI_API_KEY"
wire_api = "responses"
'@ | Set-Content -Path "$HOME\.codex\config.toml" -Encoding UTF8

echo 'export OPENAI_API_KEY="`<你的-Syon-key>`"' >> ~/.zshrc
source ~/.zshrc

echo 'export OPENAI_API_KEY="`<你的-Syon-key>`"' >> ~/.bashrc
source ~/.bashrc

[Environment]::SetEnvironmentVariable("OPENAI_API_KEY", "`<你的-Syon-key>`", "User")

/fast

service_tier = "fast"