Anthropic: Claude Opus 4.7 Fast
This model is no longer available.Add AI to your application with Puter.js.
Explore Other Models
Model Card
Claude Opus 4.7 Fast is a high-speed configuration of Anthropic's most capable model, delivering up to 2.5x faster output token generation with no reduction in quality or capabilities.
It runs the same Opus 4.7 model — which scores 87.6% on SWE-bench Verified (up from 80.8% on Opus 4.6), 94.2% on GPQA Diamond, and 69.4% on Terminal-Bench 2.0 — but optimized for lower latency at premium pricing ($30/$150 per MTok). It supports the full 1M token context window and 128k max output tokens.
Fast mode benefits are focused on output tokens per second, not time to first token. It is ideal for latency-sensitive agentic workflows, live coding sessions, and real-time tasks where response speed matters. For cost-sensitive or batch workloads, standard Opus 4.7 offers the same intelligence at lower cost.
Context Window 1M
tokens
Max Output 128K
tokens
Input Cost $30
per million tokens
Output Cost $150
per million tokens
Release Date May 12, 2026
Code Example
Add AI to your app with the Puter.js AI API, no API keys or setup required.
// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';
puter.ai.chat("Explain quantum computing in simple terms").then(response => {
document.body.innerHTML = response.message.content;
});
<html>
<body>
<script src="https://js.puter.com/v2/"></script>
<script>
puter.ai.chat("Explain quantum computing in simple terms").then(response => {
document.body.innerHTML = response.message.content;
});
</script>
</body>
</html>
More AI Models From Anthropic
Claude Fable 5.2
Claude Fable 5.2 is Anthropic's update to Claude Fable 5.1, released on November 9, 2026. It is the publicly available model of a pair, alongside Claude Mythos 5.2, which has looser cybersecurity and biology safeguards and is limited to vetted organizations. Anthropic says it produces output up to 30% faster than the 5.1 versions. Anthropic reports 49.1% on FrontierCode 2.0 (Fable 5.1: 32.4%), 74.6% on Terminal-Bench-Science 0.1 (52.6%), and 89.3% on OSWorld 2.1 (83.5%). Pricing is $8 per million input tokens and $40 per million output tokens, down from $10 and $50 for Fable 5.1. It targets large, loosely defined coding tasks, multi-day agent work, and scientific research. Anthropic recommends Opus 5.5 for most coding and knowledge tasks.
ChatClaude Haiku 5.5
Claude Haiku 5.5 is the small, low-cost model in Anthropic's 5.5 family, released on October 7, 2026 and available through the API as anthropic/claude-haiku-5-5. It has a 1M token context window and up to 128k output tokens. Pricing is $0.10 per million input tokens and $0.50 per million output tokens for requests under 100,000 tokens, down from $1 and $5 for Haiku 4.5, and $0.50 and $2.50 above that. Effort levels range from low to max, with medium as the default. Anthropic reports 72.4% on OSWorld 2.1 (offline subset, Haiku 4.5: 15.7%) and 39.2% on Terminal-Bench 4.0 at maximum effort (Haiku 4.5: 0.0%). On the same tests GPT-6 Luna scores 48.9% and 16.4%. It is aimed at summarizing documents, classifying information, querying databases, and handling subtasks for larger agents. Anthropic recommends Opus and Sonnet for demanding coding work.
ChatClaude Sonnet 5.5
Claude Sonnet 5.5 is a mid-tier model from Anthropic, released on September 28, 2026 and available through the API as anthropic/claude-sonnet-5-5. It accepts text, image, and PDF input, with a 1M token context window and up to 128k output tokens. Pricing is $2 per million input tokens and $10 per million output tokens, the same as Claude Sonnet 5. Anthropic says it generates output more than 30% faster than Sonnet 5 and can cut the cost of a task by up to 30%, because it uses fewer tokens and fewer tool calls. Anthropic reports 70.6% on Terminal-Bench 4.0 (Sonnet 5: 10.3%) and 80.1% on OSWorld 2.1 (Sonnet 5: 57.0%). It is aimed at well-scoped everyday tasks, bug fixing, agentic coding, and producing documents, slides, and spreadsheets.
Frequently Asked Questions
Claude Opus 4.7 Fast is no longer available through Puter.js. Explore other AI models for alternatives.
| Price per 1M tokens | |
|---|---|
| Input | $30 |
| Output | $150 |
Claude Opus 4.7 Fast was created by Anthropic and released on May 12, 2026.
Claude Opus 4.7 Fast supports a context window of 1M tokens. For reference, that is roughly equivalent to 2,000 pages of text.
Claude Opus 4.7 Fast can generate up to 128K tokens in a single response.
Yes — the Claude Opus 4.7 Fast API works with any JavaScript framework, Node.js, or plain HTML through Puter.js. Just include the library and start building. See the documentation for more details.
Get started with Puter.js
Add AI to your application without worrying about API keys or setup.
Explore Models View Tutorials