Fast mode for Opus 4.7 available on AI Gateway

Fast mode for Claude Opus 4.7 is now available on AI Gateway in research preview.

Fast mode delivers ~2.5x faster output token generation with full Opus 4.7 intelligence. This is an early, experimental feature.

To enable fast mode, pass speed: 'fast' in the anthropic provider options with anthropic/claude-opus-4.7.

import { streamText } from "ai";

const { text } = await streamText({
  model: "anthropic/claude-opus-4.7",
  prompt: "Analyze this codebase structure and create a plan to add user auth.",
  providerOptions: {
    anthropic: {
      speed: "fast",
    },
  },
});

You can use fast mode with Claude Code via AI Gateway by setting the CLAUDE_CODE_SKIP_FAST_MODE_ORG_CHECK and CLAUDE_CODE_ENABLE_OPUS_4_7_FAST_MODE variables in your shell configuration file or in ~/.claude/settings.json.

export CLAUDE_CODE_ENABLE_OPUS_4_7_FAST_MODE=1
export CLAUDE_CODE_SKIP_FAST_MODE_ORG_CHECK=1

{
  "env": {
    "CLAUDE_CODE_SKIP_FAST_MODE_ORG_CHECK": "1",
    "CLAUDE_CODE_ENABLE_OPUS_4_7_FAST_MODE": "1"
  }
}

Fast mode is priced at 6x standard Opus rates.

All standard pricing multipliers (e.g., prompt caching) apply on top of these rates.