Claude Opus 4.7 (Fast) API

anthropic/claude-opus-4.7-fast
Claude Opus 4.7 (Fast) is Anthropic's high-speed configuration of Opus 4.7, delivering the same capabilities with faster output.
Context
1M tokens
Input
$41.262 / 1M tokens
Output
$206.31 / 1M tokens
Released
May 12, 2026

How to use Claude Opus 4.7 (Fast) API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to anthropic/claude-opus-4.7-fast.
import requests

r = requests.post(
    "https://api.aimlapi.com/v1/chat/completions",
    headers={"Authorization": "Bearer " + AIMLAPI_KEY},
    json={
      "model": "anthropic/claude-opus-4.7-fast",
      "messages": [
        {
          "role": "user",
          "content": "Hello!"
        }
      ]
    },
)
print(r.json())
const r = await fetch("https://api.aimlapi.com/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "anthropic/claude-opus-4.7-fast",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ]
  }),
});
console.log(await r.json());
curl -X POST https://api.aimlapi.com/v1/chat/completions \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"anthropic/claude-opus-4.7-fast","messages":[{"role":"user","content":"Hello!"}]}'

OpenAI-compatible — swap the base URL and it works with your existing SDK.

Claude Opus 4.7 (Fast) API Pricing

TypePrice
Input
$41.262 / 1M tokens
Output
$206.31 / 1M tokens
Cached input
$4.1262 / 1M tokens

Fast mode is not available on Claude Opus 4.7; requests with `speed: "fast"` return an error and are billed at standard rates instead.

Claude Opus 4.7 (Fast) Benchmarks

BenchmarkScoreWhat it measuresSourceRetrieved
Intelligence
40.7
Composite score across standardised reasoning, knowledge and problem-solving evaluations, measured independently by Artificial AnalysisSourceSeptember 12, 2026
Coding
73.6
Composite score across standardised coding evaluations, measured independently by Artificial AnalysisSourceSeptember 12, 2026

Claude Opus 4.7 (Fast) vs other models

ModelInputOutputContextBest for
$41.262 / 1M tokens
$206.31 / 1M tokens
1M tokens
Agentic workflows and structured output
$6.5 / 1M tokens
$32.5 / 1M tokens
1M tokens
Complex agentic coding and enterprise workflows
$6.5 / 1M tokens
$32.5 / 1M tokens
1M tokens
Chat + assistants
$13 / 1M tokens
$65 / 1M tokens
1M tokens
Chat + assistants

Frequently asked questions

Claude Opus 4.7 (Fast) has a 1,000,000 tokens context window and can return up to 128,000 tokens.

Claude Opus 4.7 (Fast) takes image, text as input and returns text.

Use anthropic/claude-opus-4.7-fast as the model id. Requests go to https://api.aimlapi.com/v1/chat/completions.

Claude Opus 4.7 (Fast) became available on May 12, 2026.

Claude Opus 4.7 (Fast) is priced at input $41.262 / 1M tokens, output $206.31 / 1M tokens, cached input $4.1262 / 1M tokens.

Yes, Claude Opus 4.7 (Fast) can stream responses as they are generated.

Yes, Claude Opus 4.7 (Fast) accepts image input alongside text.

Claude Opus 4.7 (Fast) was built by Anthropic.

Start building with Claude Opus 4.7 (Fast)

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