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Sandbox

The sandbox tool lets the model run code during an Agent API request. The agent can execute code in an isolated container, inspect the output, and use the result in its final answer.

You don't supply the code. You enable the tool, and the model writes and runs the code itself based on your prompt and instructions - then reads its own stdout/stderr back and uses it in the answer. The exact code the model ran is returned to you in the response (see Response shape), so you can verify what executed.

Enable the tool by adding it to the tools array. The model decides when to call it based on your prompt and instructions.

Python
from perplexity import Perplexity

client = Perplexity()


def get_output_text(response) -> str:
    return "".join(
        content.text
        for item in response.output or []
        if getattr(item, "type", None) == "message"
        for content in getattr(item, "content", None) or []
        if getattr(content, "type", None) == "output_text"
    )


response = client.responses.create(
    model="openai/gpt-5.6-sol",
    input="For 230+ qualifying high-severity CVEs (CVE-YYYY-NNNNN published 2023–2025, CVSS ≥ 7.0), find the canonical vendor security advisory URL per CVE and name the affected product and the advisory's stated fix version.",
    tools=[{"type": "sandbox"}, {"type": "web_search"}],
    instructions="Use the sandbox and web search to gather and verify the advisories before answering.",
)

print(get_output_text(response))
Typescript
import Perplexity from '@perplexity-ai/perplexity_ai';

const client = new Perplexity();

const response = await client.responses.create({
  model: 'openai/gpt-5.6-sol',
  input: "For 230+ qualifying high-severity CVEs (CVE-YYYY-NNNNN published 2023–2025, CVSS ≥ 7.0), find the canonical vendor security advisory URL per CVE and name the affected product and the advisory's stated fix version.",
  tools: [{ type: 'sandbox' as const }, { type: 'web_search' as const }],
  instructions: 'Use the sandbox and web search to gather and verify the advisories before answering.',
});

console.log(response.output_text);
cURL
curl https://api.perplexity.ai/v1/agent \
  -H "Authorization: Bearer $PERPLEXITY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5.6-sol",
    "input": "For 230+ qualifying high-severity CVEs (CVE-YYYY-NNNNN published 2023–2025, CVSS ≥ 7.0), find the canonical vendor security advisory URL per CVE and name the affected product and the advisory'\''s stated fix version.",
    "tools": [
      {
        "type": "sandbox"
      },
      {
        "type": "web_search"
      }
    ],
    "instructions": "Use the sandbox and web search to gather and verify the advisories before answering."
  }' | jq
  • Web search
  • Numeric calculations and statistical analysis
  • Data cleaning, parsing, and transformation
  • Code execution to check logic or reproduce an error
  • Structured artifact generation, such as CSV, JSON, or reports
  • Multi-step workflows that need intermediate files or computed state

The sandbox is an isolated Linux container. Knowing what it can and can't do helps you predict when the model will reach for it and what to expect back.

Property Behavior
Languages The model runs Python for computation and bash for shell commands. Each execution reports its language in the response.
Internet access The container has network access, so the model's code can install packages it needs at runtime and reach external endpoints.
State within a response Multiple executions in a single response share the same container: files written and packages installed by an earlier step are still there for a later one. This is what makes multi-step workflows and intermediate files work.
Output capture stdout and stderr are captured per execution. Very large output is truncated (on the order of ~1 MiB per stream), so have the model write big results to a file and return it (see Retrieving generated files) rather than printing them.
Runtime limit Each execution has a runtime cap. If it's exceeded, that execution's status is timed_out (see Error handling). For long jobs, use background mode.

The container ships with a preinstalled Perplexity SDK, so code the model runs inside the sandbox can call Web Search, Fetch URL Content, and People Search directly - without you adding those tools to the request - then compute on what they return. Each such call is billed at its standard per-invocation rate (see Pricing).

Some connectors make their credentials available to sandbox commands.

The GitHub connector lets the model use your connected GitHub credentials in sandbox commands. Enable both sandbox and the GitHub connector in the request. The model can then use git and gh to clone private repositories, change code, commit changes, and create or update pull requests. It can access only repositories and perform only actions that your connected GitHub account permits.

For the request shape and a GitHub example, see Connectors.

For long-running sandbox calls, submit the request with background: true and poll the response by ID until it completes.

Python
import time
from perplexity import Perplexity

client = Perplexity()


def get_output_text(response) -> str:
    return "".join(
        content.text
        for item in response.output or []
        if getattr(item, "type", None) == "message"
        for content in getattr(item, "content", None) or []
        if getattr(content, "type", None) == "output_text"
    )


response = client.responses.create(
    model="openai/gpt-5.6-sol",
    input="Create a CSV with the first 10 Fibonacci numbers and their squares.",
    tools=[{"type": "sandbox"}],
    background=True,
)

while response.status in ("queued", "in_progress"):
    time.sleep(2)
    response = client.responses.retrieve(response.id)

print(get_output_text(response))
Typescript
import Perplexity from '@perplexity-ai/perplexity_ai';

const client = new Perplexity();

let response = await client.responses.create({
  model: 'openai/gpt-5.6-sol',
  input: 'Create a CSV with the first 10 Fibonacci numbers and their squares.',
  tools: [{ type: 'sandbox' as const }],
  background: true,
});

while (response.status === 'queued' || response.status === 'in_progress') {
  await new Promise((r) => setTimeout(r, 2000));
  response = await client.responses.retrieve(response.id);
}

console.log(response.output_text);
cURL
# 1. Submit with background: true
curl https://api.perplexity.ai/v1/agent \
  -H "Authorization: Bearer $PERPLEXITY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5.6-sol",
    "input": "Create a CSV with the first 10 Fibonacci numbers and their squares.",
    "tools": [{ "type": "sandbox" }],
    "background": true
  }'

# 2. Poll the response by ID until status is completed, failed, cancelled, or incomplete
curl https://api.perplexity.ai/v1/agent/$RESPONSE_ID \
  -H "Authorization: Bearer $PERPLEXITY_API_KEY"

Sandbox errors are returned through the normal Agent API response.

Case What you see
Timeout The status on the affected entry in results[] (and on the enclosing sandbox_results item) is timed_out. If the request cannot complete, the top-level response status is failed with an error object.
Runtime error The matching entry in results[] includes a non-zero exit_code and error output in stderr. The Agent API response may still complete if the container ran successfully.
Quota or limit The response fails with an error object describing the limit. Agent API rate limits still apply.

Sandbox runs inside Agent API requests and is subject to Agent API rate limits. See Rate Limits & Usage Tiers for tier-based request limits.

When the model calls the sandbox tool, the Agent API response includes a sandbox_results item in its output array alongside any message items. A single response can contain multiple sandbox_results items if the model makes more than one sandbox call.

Each sandbox_results item describes one sandbox invocation and nests the per-execution output inside a results array.

Field Type Description
type string Always sandbox_results.
call_id string Identifier for this sandbox tool call.
container_id string Identifier of the isolated container that executed the code.
language string Language the sandbox ran the code in (for example, python).
code string The code that was executed inside the sandbox.
status string Overall status of the sandbox call. One of completed, timed_out, failed.
results array One entry per execution inside the container. See fields below.

Each entry in results has the following fields:

Field Type Description
stdout string Standard output captured from the execution.
stderr string Standard error captured from the execution.
exit_code integer Process exit code. Non-zero indicates a runtime error.
duration_ms integer Wall-clock duration of the execution, in milliseconds.
status string Per-execution status. One of completed, timed_out, failed.

Example:

JSON
{
  "type": "sandbox_results",
  "call_id": "call_Y1Lo4H6cGFgNVsn4mwC0oSgc",
  "code": "vals = [(i, i*i) for i in range(1, 11)]\nprint('\\n'.join(f'{a},{b}' for a, b in vals))",
  "container_id": "i6dr97ven2qfm0sdtvfzc",
  "language": "python",
  "results": [
    {
      "duration_ms": 9011,
      "exit_code": 0,
      "status": "completed",
      "stderr": "",
      "stdout": "1,1\n2,4\n3,9\n4,16\n5,25\n6,36\n7,49\n8,64\n9,81\n10,100\n"
    }
  ],
  "status": "completed"
}

For the full request and response schema, see the Agent API reference.

When code in the sandbox writes a file and delivers it with the share_file tool, the response output array includes a share_file item. The file content is not returned inline — retrieve it with the response files endpoints, using the response id.

List the files a response produced:

Python
from perplexity import Perplexity

client = Perplexity()

files = client.responses.files.list("resp_abc123")

for file in files.data:
    print(file.id, file.filename, file.bytes)
cURL
curl https://api.perplexity.ai/v1/agent/$RESPONSE_ID/files \
  -H "Authorization: Bearer $PERPLEXITY_API_KEY" | jq
JSON
{
  "data": [
    {
      "bytes": 8002,
      "created_at": 1780923289,
      "filename": "anthropic_news.csv",
      "id": "9198548a-490b-4119-858f-fd3676b60319",
      "object": "file"
    }
  ],
  "object": "list"
}

Each entry has the following fields:

Field Type Description
id string File identifier, used to download the content. Distinct from the response id.
filename string Name the sandbox gave the file.
bytes integer File size in bytes.
created_at integer Unix timestamp of when the file was created.
object string Always file.

Download a file's content by its id. The endpoint returns the raw file bytes (not JSON), with a Content-Type matching the file and a Content-Disposition: attachment header carrying the original filename.

Python
from perplexity import Perplexity

client = Perplexity()

content = client.responses.files.content(
    file_id="9198548a-490b-4119-858f-fd3676b60319",
    response_id="resp_abc123",
)
content.write_to_file("anthropic_news.csv")
cURL
curl https://api.perplexity.ai/v1/agent/$RESPONSE_ID/files/$FILE_ID/content \
  -H "Authorization: Bearer $PERPLEXITY_API_KEY" \
  -o anthropic_news.csv

sandbox is billed on three axes:

Axis Price Notes
Tokens Per model Model token usage is billed separately according to Agent API token pricing. See Models for per-model rates.
Sandbox session $0.03 per session Billed once per sandbox container. A session is the lifecycle of a single isolated container and covers up to 20 minutes of active use for billing purposes — this is the billing window, not a runtime cap.
Tools used Per tool Code running inside the sandbox can call the Web Search, Fetch URL Content, and People Search tools. Each is billed at its standard per-invocation rate.

Sandbox invocations are counted under usage.tool_calls_details.sandbox.invocation.

See Pricing for the full Agent API tool pricing table.

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