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Anthropic: Claude Opus Latest

Claude Opus Latest represents Anthropic's flagship offering, built for maximum capability across complex tasks. It serves as a dynamic alias that automatically redirects to the newest stable Opus release, allowing applications to stay at the frontier without code changes. The model introduces high-resolution vision capabilities supporting images up to 2576px or 3.75 megapixels, doubling what previous Claude models could handle and enabling detailed analysis of dense diagrams and screenshots. A new reasoning effort tier called "xhigh" sits between high and maximum, giving users granular control over the tradeoff between speed and depth when tackling difficult problems.

Benchmark results reveal significant investment in software engineering capability, achieving 64.3% on SWE-bench Pro where it outperforms GPT-5.4 and Gemini 3.1 Pro, alongside 87.6% on SWE-bench Verified indicating frontier-class verified coding performance. The expanded context window and vision improvements make it well-suited for analyzing very large codebases, lengthy transcripts, and image-heavy document corpora in single requests. For developers building agents and long-running workflows, Claude Opus Latest offers the capability headroom needed for complex multi-step coding challenges, positioning it as a top choice for frontier-tier software engineering tasks.

Kilo Gateway~anthropic/claude-opus-latestclaude-opus

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Provider
Kilo Gateway
Model key
~anthropic/claude-opus-latest
Release date
Apr 21, 2026
Last updated
Apr 21, 2026
Input modalities
Output modalities
Capabilities

Cost

Input token cost
$4.00
Output token cost
$20.00

Limits

Output tokens
128,000 tokens
Context window
1,000,000 tokens

Transparent token rates

Compare Anthropic: Claude Opus Latest pricing

Rates are shown per one million tokens. Combined means one million input plus one million output tokens.

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Latest news about Anthropic: Claude Opus Latest

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CoverageBenchmark

The OpenOCR benchmark page (published August 22, 2026) explicitly names the "anthropic/claude-opus-latest" identifier and reports independent OCR test results: a 99.4% average score across 11 documents, with 11 of 11 scores reproducible, measured using the OpenRouter-hosted endpoint of that alias. The evaluation used t The evidence is narrow in scope — it covers OCR transcription across only 11 synthetic test documents and does not address general reasoning, coding, or agentic capabilities. The tests were conducted through the OpenRouter gateway rather than directly against an Anthropic first-party endpoint, which means the results r

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Coverage

The iChek AI directory page (dated April 2026) explicitly names the "anthropic/claude-opus-latest" identifier and describes it as Anthropic's top-tier multimodal flagship that automatically updates to the newest Opus version. The page lists a 1-million-token context window, pricing at $5.00 per million input tokens and The page recommends choosing Claude Opus Latest for applications requiring the highest reasoning quality on complex analysis, multi-step creative or technical tasks that benefit from a 1M token context, and robust multimodal understanding combined with deep reasoning. It advises looking elsewhere when strict latency or

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