Relace Apply 3 API256K context

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

What is Relace Apply 3?

Relace Apply 3 is a specialized code-patching LLM that merges AI-suggested edits straight into your source files. It can apply updates from GPT-4o, Claude, and others into your files at...

Relace Apply 3 pricing

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

On output price, Relace Apply 3 is cheaper than 54% of the 309 models in the catalog.

What Relace Apply 3 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.

Relace Apply 3 vs alternatives

When not to use Relace Apply 3

• It is served by a single provider, so there is less failover headroom during an outage.

Specs

How to call Relace Apply 3

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="relace/relace-apply-3",
    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":"relace/relace-apply-3","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: "relace/relace-apply-3",
  messages: [{ role: "user", content: "Hello" }],
});
console.log(r.choices[0].message.content);

The same key routes Relace Apply 3 and 300+ other models — switch models by changing one string. How OpenAI-compatible APIs work.

Prompting tips for Relace Apply 3

• Be explicit and show the shape of the answer. Spell out format, tone and constraints up front, and include one short example of the output you want — Relace Apply 3 follows concrete instructions better than abstract ones.
• Huge 256K context — but anchor the ask. You can paste whole documents or codebases; models attend most to the start and end, so put the key instruction at the top and restate it after long inputs.

Tips are derived from Relace Apply 3's actual capabilities — context window, tool & JSON support, modality and price tier — not generic advice.

Open-source tools for Relace Apply 3

Popular open-source frameworks and agents to build with Relace Apply 3 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 Relace Apply 3

Coming from OpenAI or another gateway? On an OpenAI-compatible setup the only changes are base_url → https://api.datallmlab.com/v1 and model → relace/relace-apply-3. 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