Supported Models

FishXCode supports a variety of AI models from multiple providers, covering different use cases and toolchains. You can freely choose and switch models based on your needs.

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Switching Models

Claude Code

Set the primary model via environment variables:

Linux/macOS

export ANTHROPIC_MODEL=claude-sonnet-4-5-20250929
claude

Windows PowerShell

$env:ANTHROPIC_MODEL = "claude-sonnet-4-5-20250929"
claude

Codex

Edit ~/.codex/config.toml and change the model field:

model = "gpt-5"

RooCode / Qwen Code

Change the Model field directly in the provider configuration. Any compatible model ID listed above can be used.

Model Recommendations

Best for Coding

claude-sonnet-4-5-20250929 — Strongest overall coding capability, ideal for complex projects and architecture-level tasks.

Best for Speed

claude-3-5-haiku-20241022 — Fastest response time, ideal for high-frequency calls and real-time completion scenarios.

Best Balance

claude-haiku-4-5-20251001 — Great balance between speed and quality, suitable for most daily development tasks.