ColinBuilds · Official Anthropic API pricing
Claude Opus 5
- Input / 1M
- $5.00
- Output / 1M
- $25.00
- Official Anthropic context window
- 1,000,000 tokens
Anthropic Claude API claude-opus-5 official API pricing; input $5/1M tokens, output $25/1M tokens. Prompt cache: 5-minute writes $6.25/1M, 1-hour writes $10/1M, cache hits $0.50/1M. · as of August 25, 2026
Compare models
Same per-1M input/output rates as above. Enter your monthly token volumes to compare bills.
Claude Opus 5
- Input: 1M × $5.00 = $5.00
- Output: 1M × $25.00 = $25.00
- Total
- $30.00
GPT-4o
- Input: 1M × $2.50 = $2.50
- Output: 1M × $10.00 = $10.00
- Total
- $12.50
Difference
$17.50
Claude Opus 5 costs $17.50 more than GPT-4o.
Popular comparisons
37 total featuring Claude Opus 5.
Claude Opus 5 is Anthropic’s current Opus-tier API model for complex agentic coding, enterprise work, and reasoning-heavy tasks. Anthropic’s models overview says to start here if you are unsure which current Claude model to use for that class of work.
What this model is
Anthropic lists the exact Claude API ID and alias as claude-opus-5. The current lineup table describes Opus 5 as the model for complex agentic coding and enterprise work, sitting between Sonnet 5 on cost/speed and Fable 5 on peak capability.
The same overview lists Claude Opus 5 with text and image input, text output, multilingual capability, vision support, adaptive thinking, a 1 million token context window, and a 128,000 token maximum output. Anthropic notes that every Claude model ID is a pinned snapshot.
Claude Opus 4.8 remains listed as a legacy model that is still available. This page is the current Opus API identity, not a rename of Opus 4.8.
Pricing notes
Anthropic’s official pricing page lists Claude Opus 5 at $5 per 1M input tokens and $25 per 1M output tokens. The calculator on this page uses those first-party Claude API rates.
The same pricing table lists prompt-cache rates for Claude Opus 5: 5-minute cache writes at $6.25 per 1M tokens, 1-hour cache writes at $10 per 1M tokens, and cache hits and refreshes at $0.50 per 1M tokens. Batch API discounts, cloud platforms, data residency, and regional endpoint premiums are separate.
Benchmarks and specs
Anthropic’s models overview lists Claude Opus 5 with a 1 million token context window, a 128,000 token maximum output, a reliable knowledge cutoff of May 2026, and a training data cutoff of May 2026. Retirement is listed as not sooner than July 24, 2027.
This page does not show a parameter count or public benchmark score. Those numbers should only be shown when exact public sources are matched to claude-opus-5 specifically.
Best fit
Claude Opus 5 is best for builders who need Anthropic’s current high-capability Opus API model for complex coding agents, deep codebase work, enterprise assistants, difficult planning tasks, and long-context reasoning where answer quality matters more than lowest cost.
Sonnet 5 is the faster cost-balanced default. Fable 5 is Anthropic’s higher-priced next-generation intelligence tier. Opus 4.8 is the previous Opus snapshot, still available as a legacy route.