Home Chat with free AI Anthropic: Claude Opus 4.1
Anthropic Premium · $18/month 495 tokens / message Balanced

Anthropic: Claude Opus 4.1 · Anthropic

Claude Opus 4.1 is an updated version of Anthropic's flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable gains in analytical capabilities and complex problem-solving.

Advanced coding Superior reasoning 200K token context

Try it free

Anthropic: Claude Opus 4.1 requires the Premium plan

Create a free account to start, or subscribe to a plan for unlimited use of premium models.

Sign up free → See plans

No card to start · Cancel anytime

Open in full chat → Compare models side by side, save your sessions and memory

About Anthropic: Claude Opus 4.1

Claude Opus 4.1 is an updated version of Anthropic's flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable gains in analytical capabilities and complex problem-solving.

Where it shines: Advanced coding · Superior reasoning · 200K token context.

How to use Anthropic: Claude Opus 4.1

  1. 1

    Type or upload

    Type what you want in the box above — or upload the file if the tool asks for one.

  2. 2

    Generate

    Click the main button. Wait 2-30 seconds depending on the model and input size.

  3. 3

    Download or share

    Download the result or share the direct link. No watermark, ready to use.

Frequently asked questions

How much does it cost to use Anthropic: Claude Opus 4.1?

Anthropic: Claude Opus 4.1 is Premium: costs 495 tokens per use (~$2.48 actual cost to provider). Requires Premium plan ($18/month → 45,000 tokens) or large one-shot packs. Intended for occasional professional use; Pro plan does not unlock Premium models.

How many uses of Anthropic: Claude Opus 4.1 are included in the Premium plan?

Premium ($18/month) gives you 45,000 recurring tokens. At 495 tokens per use of Anthropic: Claude Opus 4.1, that’s ~90 full uses per cycle. For sporadic use, one-shot packs can be more cost-effective — they last up to a year from purchase.

What makes Anthropic: Claude Opus 4.1 special?

Anthropic trains its models for honesty and nuanced reasoning — they admit when they don’t know something rather than inventing it. Its specific strengths are: advanced programming, superior reasoning, and 200k context tokens. It accepts images as input (multimodal) as well as text — useful for describing captures, reading graphs, or solving problems from a photo.

How fast does Anthropic: Claude Opus 4.1 respond?

Anthropic: Claude Opus 4.1 has a balanced speed: 5-15 seconds per response — neither the fastest nor the slowest in the catalog. The actual time depends also on the length of the prompt and the load of the datacenter — models with huge context take longer when you enter very long texts.

How do I use Anthropic: Claude Opus 4.1 in ia.gratis?

You can use Anthropic: Claude Opus 4.1 from /chat/ by selecting Anthropic: Claude Opus 4.1 in the picker, or via the REST API with `model=claude-opus-4-1` in the POST body. Quick summary: claude Opus 4.1: Anthropic advanced AI with 200K tokens for code and reasoning. The internal model identifier is `claude-opus-4-1` — useful when integrating via API.