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Anthropic: Claude Opus 5

anthropic/claude-opus-5

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Claude Opus 5 is Anthropic’s flagship model for demanding reasoning, coding, and long-horizon agentic work. It is particularly strong at end-to-end software tasks, code review and bug finding, visual analysis of charts and documents, complex office deliverables, and coordinating parallel subagents.

The model maintains strong instruction following and tool use across extended tasks, while remaining effective at lower effort settings for workloads that prioritize latency and token efficiency.

Modalities

In / Out Price

$5 / $25per 1M

Context

1.0M

Released

Jul 24, 2026

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ProvidersPricingPerformanceUptimeBenchmarksAppsActivityFAQExplore

Providers

Different companies host the same model. OpenRouter routes your request to one of them based on the routing mode you pick — Balanced (price + speed), Nitro (fastest), or Exacto (highest tool-calling accuracy).

Pricing

The average price customers actually pay for this model, next to the prices providers post. Caching and discounts mean the price actually paid is often well below the listed one.

Performance

Throughput is how fast the model writes (tokens per second — higher is better). Latency is total round-trip time (lower is better). TTFT is time-to-first-token — how long before you see anything appear (lower is better).

Uptime

Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.

Benchmarks

Scores on standardized evaluations. Higher percentages are better — and rank percentile shows where this model lands among all models on OpenRouter.

Benchmark score summary for Anthropic: Claude Opus 5 (Artificial Analysis and Design Arena)
SourceBenchmarkScore
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Xhigh Effort) Intelligence Index49.7
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Xhigh Effort) Coding Index77.0
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Xhigh Effort) Agentic Index55.5
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Xhigh Effort) GPQA Diamond93.7%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Xhigh Effort) HLE54.4%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Xhigh Effort) AA-LCR80.3%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Xhigh Effort) GDPval-AA60.4%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Xhigh Effort) CritPt27.7%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Xhigh Effort) SciCode55.7%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Xhigh Effort) AA-Omniscience Accuracy59.5%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Xhigh Effort) AA-Omniscience Non-Hallucination Rate40.5%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Low Effort) Intelligence Index39.8
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Low Effort) Coding Index66.9
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Low Effort) Agentic Index37.5
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Low Effort) GPQA Diamond88.9%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Low Effort) HLE43.4%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Low Effort) AA-LCR81.3%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Low Effort) GDPval-AA43.6%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Low Effort) CritPt23.1%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Low Effort) SciCode49.2%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Low Effort) AA-Omniscience Accuracy55.9%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Low Effort) AA-Omniscience Non-Hallucination Rate37.8%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Max Effort) Intelligence Index50.7
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Max Effort) Coding Index78.0
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Max Effort) Agentic Index56.2
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Max Effort) GPQA Diamond93.2%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Max Effort) HLE54.9%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Max Effort) AA-LCR79.3%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Max Effort) GDPval-AA61.8%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Max Effort) CritPt29.1%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Max Effort) SciCode56.4%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Max Effort) AA-Omniscience Accuracy60.9%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Max Effort) AA-Omniscience Non-Hallucination Rate39.2%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Medium Effort) Intelligence Index45.1
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Medium Effort) Coding Index74.3
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Medium Effort) Agentic Index47.0
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Medium Effort) GPQA Diamond91.9%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Medium Effort) HLE51.3%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Medium Effort) AA-LCR82.0%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Medium Effort) GDPval-AA51.2%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Medium Effort) CritPt26.9%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Medium Effort) SciCode51.5%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Medium Effort) AA-Omniscience Accuracy57.1%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, Medium Effort) AA-Omniscience Non-Hallucination Rate39.3%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, High Effort) Intelligence Index48.2
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, High Effort) Coding Index76.5
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, High Effort) Agentic Index52.7
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, High Effort) GPQA Diamond93.7%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, High Effort) HLE52.8%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, High Effort) AA-LCR79.0%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, High Effort) GDPval-AA56.4%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, High Effort) CritPt28.3%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, High Effort) SciCode55.4%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, High Effort) AA-Omniscience Accuracy58.9%
Artificial AnalysisClaude Opus 5 (Adaptive Reasoning, High Effort) AA-Omniscience Non-Hallucination Rate38.8%
Design ArenaClaude Opus 5 Agents Arena Agenticgamedev Elo1261
Design ArenaClaude Opus 5 Agents Arena Androidnative Elo1268
Design ArenaClaude Opus 5 Agents Arena Full Stack Elo1314
Design ArenaClaude Opus 5 Agents Arena Mobile Apps Elo1348
Design ArenaClaude Opus 5 Agents Arena Python-Pptxslides Elo1265
Design ArenaClaude Opus 5 Agents Arena Webapps Elo1278
Design ArenaClaude Opus 5 Models Arena 3D Elo1363
Design ArenaClaude Opus 5 Models Arena Asciiart Elo1390
Design ArenaClaude Opus 5 Models Arena Code Categories Elo1338
Design ArenaClaude Opus 5 Models Arena Data Visualization Elo1353
Design ArenaClaude Opus 5 Models Arena Game Development Elo1362
Design ArenaClaude Opus 5 Models Arena SVG Elo1343
Design ArenaClaude Opus 5 Models Arena UI Component Elo1359
Design ArenaClaude Opus 5 Models Arena Website Elo1320

Apps

Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for.

Activity

Token volume and request traffic to this model over time.

Quick Start

Drop-in code to call this model. OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. The only thing that changes between models is the model slug below.

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Frequently asked questions

Claude Opus 5 is Anthropic’s flagship model for demanding reasoning, coding, and long-horizon agentic work. It is particularly strong at end-to-end software tasks, code review and bug finding, visual analysis of charts and documents, complex office deliverables, and coordinating parallel subagents.

Claude Opus 5 costs $5.00/M input tokens and $25.00/M output tokens, with separate rates for Cache Read at $0.50/M tokens, Cache Write at $6.25/M tokens, and Cache Write (1h) at $10.00/M tokens.

Claude Opus 5 has a 1,000,000 token context window. It supports up to 128,000 completion tokens.

Yes. Claude Opus 5 accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.

Claude Opus 5 accepts text, images, and files such as PDFs as input and returns text.

Claude Opus 5 is served by 5 providers on OpenRouter: Azure, Claude Platform on AWS, Google Vertex, Amazon Bedrock, and Anthropic. Requests are routed to the best available provider, with automatic failover to the others, and you can pin or exclude providers with provider routing.

Claude Opus 5 was released on July 24, 2026.