Command A APIOPEN WEIGHTS256K context

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

What is Command A?

Command A is an open-weights 111B parameter model with a 256k context window focused on delivering great performance across agentic, multilingual, and coding use cases. Compared to other leading proprietary...

Command A on the release timeline

Command A pricing

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

On output price, Command A is cheaper than 15% of the 309 models in the catalog.

What Command A 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.

Command A vs alternatives

When not to use Command A

• It is premium-priced (output cheaper than only 15% 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 Command A

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

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

Prompting tips for Command A

• 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 — Command A 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.
• Constrain JSON with a schema. Use response_format / structured outputs rather than "reply in JSON" to get valid, parseable objects every time.
• It's premium — spend where it counts. Route easy calls to a cheaper model and reserve Command A for the hard reasoning; trim system prompts and few-shot examples that don't move the result.

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

Open-source tools for Command A

Popular open-source projects for running and building with Command A — star counts pulled from GitHub (July 2026).

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

Migrating to Command A

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

Self-host or use the API?

Command A ships open weights (CohereForAI/c4ai-command-a-03-2025, ~1.6K downloads and 393 likes in the last 30 days), so you can run it yourself. Most teams still use the API: no GPU to provision or keep warm, no inference ops, and instant access across 1 providers with automatic failover. Self-host when data residency or fixed per-token economics matter most.

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