Anthropic
Claude Sonnet 5.5
Total Context
1M
Max Output
128K
Released
N/A
claude-opus-4.7-fastClaude Opus 4.7 Fast is the fast-mode version of Opus 4.7. Third-party cards present it as keeping Opus 4.7’s advanced reasoning and engineering profile while trading higher cost for greater speed. It fits scenarios that need Opus-class autonomy but where interactive latency is a major product constraint.
Context Window
1M tokens
Maximum Output
128K tokens
Release Date
Apr 16, 2026
Modalities
| Input Price | Output Price | Cache Read | Cache Create 5m |
|---|---|---|---|
| $30/M | $150/M | $3/M | $37.5/M |
Reasoning
Tool calling
Temperature parameter
Attachments
Knowledge Base
Endpoint Protocols
Claude Opus 4.7 Fast denotes the former accelerated configuration of Opus 4.7, retaining its coding, sustained execution and visual understanding capabilities.
The historical fast configuration used the same Opus 4.7 weights and behavior rather than a separately trained model.
Plans and implements difficult software changes while checking intermediate results and its own code.
Processes higher-resolution images to interpret detailed interfaces, technical diagrams and visual documents.
Claude Opus 4.7 Fast is suited to difficult software work, repository investigation and visual document tasks, without implying current first-party fast-mode availability.
Translate a demanding specification into an implementation plan, working code and verification steps.
Trace failures across files, logs and dependencies, then propose and validate a targeted correction.
Inspect interfaces, slides or technical diagrams and return specific corrections grounded in visual evidence.
import OpenAI from "openai"
const client = new OpenAI({
apiKey: process.env.TOKENHUB_API_KEY,
baseURL: "https://us-api.tokenhub.com/v1",
})
const result = await client.chat.completions.create({})
console.log(result.choices[0]?.message?.content)| Index score | ||
|---|---|---|
| Artificial Analysis Intelligence Index | Artificial Analysis broad capability aggregate | 57.3 |
| Artificial Analysis Coding Index | Artificial Analysis software task aggregate | 52.5 |
| Knowledge & Reasoning | ||
| GPQA | Advanced science problem solving | 91.4% |
| HLE | Broad expert-level exam set | 39.6% |
| Coding & Engineering | ||
| SciCode | Scientific coding challenges | 54.5% |
| Terminal-Bench Hard | Hard terminal task execution | 51.5% |
| Instruction Following & Agent Tasks | ||
| IFBench | Prompt constraint adherence | 58.6% |
| AA-LCR | Long-context reasoning | 70.3% |
| τ²-Bench | Agent workflow tasks | 88.6% |
Metrics sourced from Artificial Analysis
Understand what Claude Opus 4.7 Fast is, its best uses, distinguishing strengths, practical tradeoffs, and safe TokenHub integration guidance.
Claude Opus 4.7 Fast is Claude Opus 4.7 with Anthropic’s research-preview Fast mode for speed-sensitive Opus workloads. Fast mode is a research preview and may have separate access, pricing, and limits from standard Opus.
Best-fit scenarios include agents that need faster output, difficult software-engineering tasks, and long-running multi-step workflows. Test representative inputs and define measurable acceptance criteria before production.
Key strengths include higher output speed than standard mode, the underlying Opus model’s capability, and strict instruction following. This combination is especially useful for difficult software-engineering tasks.
Consider another model when the premium Fast-mode cost is not justified by the latency target, a stable interface and predictable behavior are mandatory, or the project can benefit from a newer Opus generation. Verify important factual, legal, financial, medical, or operational outputs with qualified human review.
In TokenHub, select the exact model identifier displayed for Claude Opus 4.7 Fast, use the endpoint documented for your account, and authenticate with your TokenHub credentials. Confirm that Fast mode is enabled for your account and compare its current premium cost and limits with standard Opus before routing traffic.
Use one API key to access Claude Opus 4.7 Fast and more AI models through TokenHub.
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