sandbox-agent/docs/agent-capabilities.mdx

---
title: "Agent Capabilities"
description: "Models, modes, and thought levels supported by each agent."
---

Capabilities are subject to change as the agents are updated. See [Agent Sessions](/agent-sessions) for full session configuration API details.


<Info>
    _Last updated: March 5th, 2026. See [Generating a live report](#generating-a-live-report) for up-to-date reference._
</Info>

## Claude

| Category | Values |
|----------|--------|
| **Models** | `default`, `sonnet`, `opus`, `haiku` |
| **Modes** | `default`, `acceptEdits`, `plan`, `dontAsk`, `bypassPermissions` |
| **Thought levels** | Unsupported |

### Configuring Effort Level For Claude

Claude does not natively support changing effort level after a session starts, so configure it in the filesystem before creating the session.

```ts
import { mkdir, writeFile } from "node:fs/promises";
import path from "node:path";
import { SandboxAgent } from "sandbox-agent";

const cwd = "/path/to/workspace";
await mkdir(path.join(cwd, ".claude"), { recursive: true });
await writeFile(
  path.join(cwd, ".claude", "settings.json"),
  JSON.stringify({ effortLevel: "high" }, null, 2),
);

const sdk = await SandboxAgent.connect({ baseUrl: "http://127.0.0.1:2468" });
await sdk.createSession({
  agent: "claude",
  sessionInit: { cwd, mcpServers: [] },
});
```

<Accordion title="Supported file locations (highest precedence last)">

1. `~/.claude/settings.json`
2. `<session cwd>/.claude/settings.json`
3. `<session cwd>/.claude/settings.local.json`

</Accordion>

## Codex

| Category | Values |
|----------|--------|
| **Models** | `gpt-5.3-codex` (default), `gpt-5.3-codex-spark`, `gpt-5.2-codex`, `gpt-5.1-codex-max`, `gpt-5.2`, `gpt-5.1-codex-mini` |
| **Modes** | `read-only` (default), `auto`, `full-access` |
| **Thought levels** | `low`, `medium`, `high` (default), `xhigh` |

## OpenCode

| Category | Values |
|----------|--------|
| **Models** | See below |
| **Modes** | `build` (default), `plan` |
| **Thought levels** | Unsupported |

<Accordion title="See all models">

| Provider | Models |
|----------|--------|
| **Anthropic** | `anthropic/claude-3-5-haiku-20241022`, `anthropic/claude-3-5-haiku-latest`, `anthropic/claude-3-5-sonnet-20240620`, `anthropic/claude-3-5-sonnet-20241022`, `anthropic/claude-3-7-sonnet-20250219`, `anthropic/claude-3-7-sonnet-latest`, `anthropic/claude-3-haiku-20240307`, `anthropic/claude-3-opus-20240229`, `anthropic/claude-3-sonnet-20240229`, `anthropic/claude-haiku-4-5`, `anthropic/claude-haiku-4-5-20251001`, `anthropic/claude-opus-4-0`, `anthropic/claude-opus-4-1`, `anthropic/claude-opus-4-1-20250805`, `anthropic/claude-opus-4-20250514`, `anthropic/claude-opus-4-5`, `anthropic/claude-opus-4-5-20251101`, `anthropic/claude-opus-4-6`, `anthropic/claude-sonnet-4-0`, `anthropic/claude-sonnet-4-20250514`, `anthropic/claude-sonnet-4-5`, `anthropic/claude-sonnet-4-5-20250929` |
| **OpenAI** | `openai/gpt-5.1-codex`, `openai/gpt-5.1-codex-max`, `openai/gpt-5.1-codex-mini`, `openai/gpt-5.2`, `openai/gpt-5.2-codex`, `openai/gpt-5.3-codex` |
| **Cerebras** | `cerebras/gpt-oss-120b`, `cerebras/qwen-3-235b-a22b-instruct-2507`, `cerebras/zai-glm-4.7` |
| **OpenCode Zen** | `opencode/big-pickle`, `opencode/claude-3-5-haiku`, `opencode/claude-haiku-4-5`, `opencode/claude-opus-4-1`, `opencode/claude-opus-4-5`, `opencode/claude-opus-4-6`, `opencode/claude-sonnet-4`, `opencode/claude-sonnet-4-5`, `opencode/gemini-3-flash`, `opencode/gemini-3-pro` (default), `opencode/glm-4.6`, `opencode/glm-4.7`, `opencode/gpt-5`, `opencode/gpt-5-codex`, `opencode/gpt-5-nano`, `opencode/gpt-5.1`, `opencode/gpt-5.1-codex`, `opencode/gpt-5.1-codex-max`, `opencode/gpt-5.1-codex-mini`, `opencode/gpt-5.2`, `opencode/gpt-5.2-codex`, `opencode/kimi-k2`, `opencode/kimi-k2-thinking`, `opencode/kimi-k2.5`, `opencode/kimi-k2.5-free`, `opencode/minimax-m2.1`, `opencode/minimax-m2.1-free`, `opencode/trinity-large-preview-free` |

</Accordion>

## Cursor

| Category | Values |
|----------|--------|
| **Models** | See below |
| **Modes** | Unsupported |
| **Thought levels** | Unsupported |

<Accordion title="See all models">

| Group | Models |
|-------|--------|
| **Auto** | `auto` |
| **Composer** | `composer-1.5`, `composer-1` |
| **GPT-5.3 Codex** | `gpt-5.3-codex`, `gpt-5.3-codex-low`, `gpt-5.3-codex-high`, `gpt-5.3-codex-xhigh`, `gpt-5.3-codex-fast`, `gpt-5.3-codex-low-fast`, `gpt-5.3-codex-high-fast`, `gpt-5.3-codex-xhigh-fast` |
| **GPT-5.2** | `gpt-5.2`, `gpt-5.2-high`, `gpt-5.2-codex`, `gpt-5.2-codex-low`, `gpt-5.2-codex-high`, `gpt-5.2-codex-xhigh`, `gpt-5.2-codex-fast`, `gpt-5.2-codex-low-fast`, `gpt-5.2-codex-high-fast`, `gpt-5.2-codex-xhigh-fast` |
| **GPT-5.1** | `gpt-5.1-high`, `gpt-5.1-codex-max`, `gpt-5.1-codex-max-high` |
| **Claude** | `opus-4.6-thinking` (default), `opus-4.6`, `opus-4.5`, `opus-4.5-thinking`, `sonnet-4.5`, `sonnet-4.5-thinking` |
| **Other** | `gemini-3-pro`, `gemini-3-flash`, `grok` |

</Accordion>

## Amp

| Category | Values |
|----------|--------|
| **Models** | `amp-default` |
| **Modes** | `default`, `bypass` |
| **Thought levels** | Unsupported |

## Pi

| Category | Values |
|----------|--------|
| **Models** | `default` |
| **Modes** | Unsupported |
| **Thought levels** | Unsupported |

## Generating a live report

Requires a running Sandbox Agent server. `--endpoint` defaults to `http://127.0.0.1:2468`.

```bash
sandbox-agent api agents report
```

<Note>
    The live report reflects what the agent adapter returns for the current credentials. Some models may be gated by subscription (e.g. Claude's `opus` requires a paid plan) and will not appear in the report if the credentials don't have access.
</Note>