# Claude Opus 4 ![Organization](https://img.shields.io/badge/Org-Anthropic-d97757) ![License](https://img.shields.io/badge/License-Proprietary-d29922) ![Released](https://img.shields.io/badge/Released-May%202025-555) ![Price](https://img.shields.io/badge/Price-%2415%2F%2475-555) > **Quick answer:** Claude Opus 4 is Anthropic's May 2025 flagship model, scoring 72.5% SWE-Bench Verified, 46.9% LiveCodeBench, 6.68% HLE, and 8.6% ARC-AGI v2. Priced at $15/$75 per MTok. ## At a Glance **Where Claude Opus 4 leads** - 72.5% SWE-Bench Verified — competitive real-world software engineering - Anthropic brand trust and safety research investment - Strong long-context reasoning - Extended thinking mode **Where it lags** - 6.68% HLE — lower than newer frontier models - 8.6% ARC-AGI v2 — moderate on abstract reasoning - $15/$75 per MTok — high cost vs Claude Sonnet 4 - Succeeded by Claude models in subsequent generations **Best for:** Enterprise use cases requiring Anthropic's safety guarantees; complex agentic software engineering; long-context document analysis. ## What Claude Opus 4 Is Claude Opus 4 is Anthropic's May 2025 flagship — the most capable model in the Claude 4 generation at release. Claude models are known for their adherence to Constitutional AI principles, strong instruction following, and careful reasoning on complex tasks. The 72.5% SWE-Bench Verified score reflects Opus 4's strength on real-world software engineering tasks — competitive at the time of release. The model supports extended thinking mode for longer chain-of-thought reasoning on complex tasks. At $15/$75 per MTok, Opus 4 is positioned at the premium tier of Claude 4, with Claude Sonnet 4 and Haiku 4 offering lower-cost alternatives. ## Specifications | Field | Value | |---|---| | Organization | Anthropic | | License | Proprietary (API only) | | Release date | May 22, 2025 | | Modality | Text only | | Context window | 200K tokens | | Output tokens | Up to 32K | ## Pricing | Tier | Price per MTok | |---|---| | Input | $15.00 | | Output | $75.00 | Available via Anthropic API (api.anthropic.com) and Amazon Bedrock. ## Public Benchmark Scores | Benchmark | Score | Source | Date | |---|---|---|---| | [SWE-Bench Verified](/benchmarks/swe-bench-verified) | 72.5% | Benchgen evaluation | 2025-05 | | [LiveCodeBench](/benchmarks/livecodebench) | 46.9% | Benchgen evaluation | 2025-05 | | [Humanity's Last Exam](/benchmarks/humanitys-last-exam) | 6.68% | Benchgen evaluation | 2025-05 | | [ARC-AGI v2](/benchmarks/arc-agi) | 8.6% | Benchgen evaluation | 2025-05 | | [Shade Arena](/benchmarks/shade-arena) | 30.2% | Benchgen evaluation | 2025-05 | ## Claude Opus 4 vs Alternatives | Model | SWE-Bench | LiveCodeBench | Price (in/out) | |---|---|---|---| | **Claude Opus 4** | 72.5% | 46.9% | $15/$75 | | [GPT-5 Codex](/models/openai/gpt-5-codex) | 74.5% | — | Proprietary | | [HY3](/models/hungyuan/hy3) | 78.0% | — | Proprietary | | [DeepSeek-V3.2 Speciale](/models/deepseek/deepseek-v3-2-speciale) | 73.1% | — | MIT (open) | Claude Opus 4 at 72.5% SWE-Bench is competitive with GPT-5 Codex (74.5%) and HY3 (78%). For open-source SWE: DeepSeek-V3.2 Speciale (73.1%, MIT). For Anthropic ecosystem: Opus 4 with extended thinking is the primary choice. ## Related Models & Benchmarks - Compare: [Claude Sonnet 3.7](/models/anthropic/claude-sonnet-3-7) · [GPT-5 Codex](/models/openai/gpt-5-codex) · [DeepSeek-V3.2 Speciale](/models/deepseek/deepseek-v3-2-speciale) - Benchmarks: [SWE-Bench Verified](/benchmarks/swe-bench-verified) · [LiveCodeBench](/benchmarks/livecodebench) · [Humanity's Last Exam](/benchmarks/humanitys-last-exam) ## Frequently Asked Questions

What is Claude Opus 4?

Anthropic's May 2025 flagship model scoring 72.5% SWE-Bench Verified, 46.9% LiveCodeBench. $15/$75 per MTok. Top of the Claude 4 generation.

Is Claude Opus 4 worth $15/$75?

For tasks requiring maximum Claude capability (complex reasoning, long-context, extended thinking), Opus 4 is justified. For most production coding/chat tasks, Claude Sonnet 4 offers better price/performance. Use Opus 4 when you need the flagship.

--- *Specs from Anthropic's Claude Opus 4 release (May 2025) and Benchgen evaluations. Last updated 2026-07-24.*

Claude Opus 4 — Files