Claude Opus 5
Anthropic's Claude model family. Anthropic's own docs say to start with Opus 5 for complex agentic coding and enterprise work; the family also includes Sonnet 5, Haiku 4.5 and Fable 5 (available on Max plans, capped at 50% of your weekly usage limit). API price per million tokens (input/output): Opus 5 $5/$25, Sonnet 5 $2/$10 (introductory, through 2026-08-31; $3/$15 from 2026-09-01), Haiku 4.5 $1/$5, Fable 5 $10/$50. Plans: Free $0, Pro $20/mo (or $200 billed annually, about $17/mo), Max from $100/mo. Official pages list USD prices; verified 2026-08-01.
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In-Depth Review
Claude Opus 5 Review: Anthropic's Flagship ModelPer Anthropic's official model overview (checked 2026-08-02), the current Claude family is Fable 5 (highest capability, long-running agents), Opus 5 (complex agentic coding and enterprise work), Sonnet 5 (the best balance of speed and intelligence) and Haiku 4.5 (fastest, lowest cost); Opus 4.8 is the previous generation. Compiled from official sources and hands-on use; pricing per the official site and subject to change (verified 2026-06-06).Key capabilitiesLong-context handling is a primary strength: per Anthropic's official model overview (checked 2026-08-02) Opus 5 supports a 1M-token context window, enough to process a whole project's documents or several research papers at once while staying coherent across thousands of lines of code or lengthy legal text.For agentic coding, Opus 4.8 can carry out multi-step tasks, generate code, and help flag potential security and performance issues, which is useful for code review and refactoring and cuts manual review time.Safety has long been an Anthropic focus; the model has layered safeguards to reduce harmful output, part of why it is used in regulated sectors such as finance and healthcare.Pricing and plansPlans: Free $0, Pro $20/month ($17/month billed annually, $200/year), Max from $100/month. API (per million tokens, input/output): Opus 5 $5/$25, Sonnet 5 $3/$15 (introductory $2/$10 through 2026-08-31), Haiku 4.5 $1/$5. Choose Opus for complex reasoning and agentic work, Sonnet to balance cost and speed, and Haiku for high-volume, low-latency, budget-sensitive tasks.ExperienceLatency stays low even on long text; the free and paid tiers differ mainly in rate limits and quota. Limits: there is no built-in real-time web search, so pair it with other tools when you need current data, and image generation is not a strong point.Who it's forResearchers and writers who need deep text analysis; engineering teams wanting code review and refactoring help; data, legal and compliance roles handling large documents; organizations that prioritize reliable answers and data security.Bottom lineIf your work centers on long-document analysis, software development, and data security, Claude Opus 4.8 is worth serious consideration; if you need live web access or image generation, pair it with other tools.
Pros & Cons
Pros
- Several API price points ($1/$5 up to $10/$50)
- Official Web Search and Web Fetch tools
Cons
- Does not produce photos or illustrations
- Sonnet 5's $2/$10 is introductory through 2026-08-31, then $3/$15
Best For
Researchers and engineers doing deep doc analysis
FAQ
The free plan covers basic chat and text tasks for light use. Pro is $20/month ($17/month billed annually) with higher rate limits, larger quota and priority handling; Max starts at $100/month; API is billed separately by usage.
About 200,000 tokens, enough to work through long documents, research papers or large codebases in one pass with less need to split content.
It can run multi-step tasks, generate code, and help with debugging and refactoring, which suits development teams for code review and system work.
Opus 4.8 suits complex reasoning and agentic work (API $5/$25 per million tokens); Sonnet 4.6 balances speed and capability ($3/$15); Haiku 4.5 is the fastest, lowest-cost tier ($1/$5). Pick by task and budget.
Content analysis, software development and debugging, data and legal document work, and enterprise tasks needing reliable answers and data security. Note it has no built-in real-time web search and image generation isn't a strength.