Claude Opus 4.5
Claude Opus 4.5 adds an effort parameter for token-usage control and excels at difficult coding, agentic workflows with computer use and tool use, frontend coding, and real-world web app development, with improvements in general intelligence and vision over previous Opus iterations.
- Input and output price
- Prices from: Input $5, Output $25, Per 1M tokens
- 24h uptime
- Loading AI Gateway uptime
import { streamText } from 'ai'
const result = streamText({ model: 'anthropic/claude-opus-4.5', prompt: 'Why is the sky blue?'})Copy link to headingProviders
Route requests across multiple providers. Copy a provider slug to set your preference. Visit the docs for more info. Using a provider means you agree to their terms, listed under Legal.
Copy link to headingPlayground
Try out Claude Opus 4.5 by Anthropic. Usage is billed to your team at API rates. Free users (those who haven't made a payment) get $5 of credits every 30 days.
Claude Opus 4.5
Claude Opus 4.5
Copy link to headingUptime24 hours
Direct request success rate on AI Gateway and per-provider. Visit the docs for more info.
Copy link to headingThroughput24 hours
P50 throughput on live AI Gateway traffic, in tokens per second (TPS). Visit the docs for more info.
Copy link to headingLatency24 hours
P50 time to first token (TTFT) on live AI Gateway traffic, in milliseconds. View the docs for more info.
Copy link to headingMore models by Anthropic
| Model |
|---|
| 1M | 1.4 s | 83 tps | $10/M | $50/M | Read$0.25/M Write$12.50/M | $10/K | +2 |   | 08/31/2026 | |||||
| 1M | 3.4 s | 97 tps | $5/M+1 more | $25/M+1 more | Read$0.50/M Write$6.25/M | $10/K | +3 | +1 | 07/24/2026 | |||||
| 1M | 1.6 s | 120 tps | $2/M | $10/M | Read$0.20/M Write$2.50/M | $10/K | +3 | +1 | 06/29/2026 | |||||
| 1M | 1.3 s | 103 tps | $5/M+1 more | $25/M+1 more | Read$0.50/M Write$6.25/M | $10/K | +3 | +1 | 05/28/2026 | |||||
| 1M | 0.8 s | 66 tps | $3/M | $15/M | Read$0.30/M Write$3.75/M | $10/K | +3 | +1 | 02/17/2026 | |||||
| 200K | 0.4 s | 113 tps | $1/M | $5/M | Read$0.10/M Write$1.25/M | $10/K | +3 | +1 | 10/15/2025 |
Copy link to headingAbout Claude Opus 4.5
Claude Opus 4.5 became available on AI Gateway on November 24, 2025. The model adds a new effort parameter that affects all token types and governs how much token usage the model applies per request. It defaults to high and operates independently of the thinking budget, giving you a separate lever for token efficiency without adjusting extended thinking configuration.
Difficult coding tasks and agentic workflows are core strengths, especially those combining computer use and tool use. Claude Opus 4.5 handles context from external memory files effectively. Frontend coding and design for real-world web applications are established strengths of this checkpoint.
To use Claude Opus 4.5, set the model to anthropic/claude-opus-4.5 and configure effort through providerOptions in the AI SDK, Chat Completions API, Responses API, Messages API, or other API formats. The effort setting is independent of the thinking budget. Set both separately to manage the cost-quality tradeoff for different request types in the same application.
Anthropic designed Claude Opus 4.5 for the demanding end of the agent capability spectrum: workflows involving computer use, external tool calls, memory file management, and frontend development where design quality and code correctness both apply.
Copy link to headingWhat To Consider When Choosing a Provider
- Configuration: The
effortparameter (high by default) affects all token types for a request. Set it inproviderOptions.anthropic.effortto manage token usage per request when running mixed workloads with varying complexity. - Zero Data Retention: Zero Data Retention is available for this model. It is offered on a per-provider and model basis. See the documentation for details.
- Authentication: AI Gateway authenticates requests using an API key or OIDC token. You do not need to manage provider credentials directly.
Copy link to headingWhen to Use Claude Opus 4.5
Best for
- Agentic workflows combining computer use and tool use: A core strength for tasks requiring both capabilities in combination
- Frontend coding and design: Production-quality output on complex UI development tasks for real-world web apps
- Demanding reasoning and complex problem solving: The
effortparameter (high by default) applies maximum token usage per request for hard analytical work - External memory file handling: The model manages context across long agentic sessions with memory file access
- Effort-level control: Workloads mixing simple and complex requests benefit from per-request token usage management
Consider alternatives when
- Fastest interactive response: Haiku 4.5 or Sonnet 4 variants suit low-latency use
- Sonnet-level depth suffices: A Sonnet model handles tasks that don't require Opus-level reasoning at lower cost
- 1M token context window: Context size came to Opus models with version 4.6
Copy link to headingConclusion
Claude Opus 4.5 is built for the demanding intersection of agentic workflows: computer use, external tool calls, memory management, and frontend development. The effort parameter gives teams explicit cost control on top of the model's capabilities. For organizations pushing the complexity ceiling of what agents can handle autonomously, it's the right Opus checkpoint prior to 4.6.
Your use is subject to Anthropic's Terms & Privacy Policies.