Sonar Deep Research API128K context

Pricing & specs mirror our live pricing as of July 2026 (pay-as-you-go).

What is Sonar Deep Research?

Sonar Deep Research is a research-focused model designed for multi-step retrieval, synthesis, and reasoning across complex topics. It autonomously searches, reads, and evaluates sources, refining its approach as it gathers...

Sonar Deep Research on the release timeline

Sonar Deep Research pricing

Pay-as-you-go on DataLLM Lab — these are our live list prices (identical to the pricing page):

On output price, Sonar Deep Research is cheaper than 22% of the 309 models in the catalog.

What Sonar Deep Research costs per month

Cost = input price × input volume + output price × output volume. The same five workloads run on every model page, so any two compare directly.

Sonar Deep Research vs alternatives

When not to use Sonar Deep Research

• It is premium-priced (output cheaper than only 22% of the catalog) — for routine work a cheaper model likely does the job.
• It is served by a single provider, so there is less failover headroom during an outage.

Specs

How to call Sonar Deep Research

Copyfrom openai import OpenAI
client = OpenAI(base_url="https://api.datallmlab.com/v1", api_key="YOUR_DATALLM_LAB_KEY")
resp = client.chat.completions.create(
    model="perplexity/sonar-deep-research",
    messages=[{"role": "user", "content": "Hello"}],
)
print(resp.choices[0].message.content)

Copycurl https://api.datallmlab.com/v1/chat/completions \
  -H "Authorization: Bearer YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"perplexity/sonar-deep-research","messages":[{"role":"user","content":"Hello"}]}'

Copyimport OpenAI from "openai";
const client = new OpenAI({ baseURL: "https://api.datallmlab.com/v1", apiKey: process.env.DATALLM_KEY });
const r = await client.chat.completions.create({
  model: "perplexity/sonar-deep-research",
  messages: [{ role: "user", content: "Hello" }],
});
console.log(r.choices[0].message.content);

The same key routes Sonar Deep Research and 300+ other models — switch models by changing one string. How OpenAI-compatible APIs work.

Prompting tips for Sonar Deep Research

• State the goal, not every step. Sonar Deep Research reasons internally — give it the objective, constraints and success criteria and let it plan the approach; over-scripting each step tends to lower quality. Turn effort up for hard problems.
• It's premium — spend where it counts. Route easy calls to a cheaper model and reserve Sonar Deep Research for the hard reasoning; trim system prompts and few-shot examples that don't move the result.

Tips are derived from Sonar Deep Research's actual capabilities — context window, tool & JSON support, modality and price tier — not generic advice.

Open-source tools for Sonar Deep Research

Popular open-source frameworks and agents to build with Sonar Deep Research over the API — star counts pulled from GitHub (July 2026).

Listed by GitHub stars; inclusion is by ecosystem relevance (agent frameworks, SDKs and gateways), not affiliation. Stars change — see each repo for current numbers.

Migrating to Sonar Deep Research

Coming from OpenAI or another gateway? On an OpenAI-compatible setup the only changes are base_url → https://api.datallmlab.com/v1 and model → perplexity/sonar-deep-research. Messages, streaming and the rest of your code stay the same. Routing & failover guide.

Rate limits & reliability

Rate limits here are the DataLLM Lab gateway's, not the upstream vendor's. On 429 (rate limited) or 503 (provider busy), retry with exponential backoff. See the error-code guide and failover setup.

Related reading

Frequently asked questions