As of August 20, 2026, Claude Opus 5 API pricing is $5.00 per million input tokens and $25.00 per million output tokens. A typical 100K-in / 20K-out request costs $1.00. Source: https://platform.claude.com/docs/en/about-claude/pricing
Source: Anthropic Claude API pricing (https://platform.claude.com/docs/en/about-claude/pricing)
Input $/M
$5.00
Output $/M
$25.00
Blended / 1M
$30.00
100K / 20K request
$1.00
| Context Window | 1M |
|---|---|
| Max Output | 128K tokens |
| Release Date | 2026-07-24 |
| Knowledge Cutoff | 2026-05 |
| License | Proprietary |
| Throughput | 3.437096666269855 tok/s |
| Chatbot Arena | 1493 |
|---|---|
| HLE | 64.7% |
| GPQA Diamond | 92.9% |
| CursorBench | 70% |
| SWE-bench Verified | 96% |
| DeepSWE | 73.7% |
| DeepSWE 1.1 | 73.7% |
| LiveCodeBench | 89.0% |
| SciCode | 55.7% |
| Arena Code Elo | 1711.88 |
| Vibe Code Bench | 88.4% |
| BrowseComp | 90.8% |
| SimpleQA | 56.7% |
| FinanceAgent v2 | 58.6% |
| ARC-AGI 2 | 90.4% |
| ARC-AGI-1 Verified | 97.5% |
| Terminal-Bench 2.1 | 84.6% |
| OSWorld | 70.6% |
| OSWorld Verified | 83.4% |
| ToolAthlon | 80.6% |
| MCP Atlas | 85.8% |
| AIME 2025 | 93.3% |
| MMMU | 89.9% |
| APEX-Agents | 43.5% |
| ARC-AGI-3 | 30.2% |
| Arena Agent Elo | 12.20 |
| Arena Vision Elo | 1297 |
| AutomationBench | 26% |
| Biomysterybench | 90.1% |
| Code Migration | 57.5% |
| CorpFin v2 | 73.2% |
| CritPt | 29.1% |
| CyberBench | 40.7% |
| EMB | 73.6% |
| Frontier-Bench v0.1 | 43.3% |
| FrontierCode | 53.4% |
| FrontierCode 1.1 | 53.4% |
| GDP-PDF | 24% |
| HealthBench Professional | 59.8% |
| IOI | 91.7% |
| Legal Agent Benchmark | 11.7% |
| MedCode | 63.6% |
| MedScribe | 91.0% |
| MMLU-Pro | 91.6% |
| OSWorld 2.0 | 70.6% |
| ProofBench | 78% |
| SAGE | 49.4% |
| SkillsBench | 60.4% |
| SWE-bench Pro | 79.2% |
| Tax Eval v2 | 75.1% |
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As of August 20, 2026, Claude Opus 5 Claude API pricing from Anthropic is $5.00 per million input tokens and $25.00 per million output tokens. Input tokens are the prompt you send; output tokens are the completion. Long answers therefore cost more than short ones even when the prompt stays the same. Source: https://platform.claude.com/docs/en/about-claude/pricing
On this page the blended Claude Opus 5 API cost is $30.00 for 1 million input tokens plus 1 million output tokens. That 1:1 mix is the comparison scale used across the LLM pricing table. A 3:1 mix (three million input tokens per one million output tokens), which some calculators use, would be about $40.00.
A typical Claude Opus 5 API request with 100K input tokens and 20K output tokens costs about $1.00 at current rates as of August 20, 2026. Multiply that by daily or monthly volume to estimate spend. Caching, batch APIs, and volume discounts from Anthropic can bring the real invoice lower than the public list rate at https://platform.claude.com/docs/en/about-claude/pricing.
Claude Opus 5 supports a 1M token context window and can generate up to 128K output tokens per request. The context window is the total prompt plus conversation history the model can see in one call. Larger windows cost more when you fill them, because every input token is billed per million tokens.
No. Claude Opus 5 is a proprietary model by Anthropic. The only public way to call it is Anthropic's API, billed per million input and output tokens. There is no self-host option for the weights.
Claude Opus 5 currently reports Chatbot Arena 1493, HLE 64.7%, GPQA Diamond 92.9%. See the performance table for the full eval set. Use those scores with the token prices above when you are choosing between a cheaper LLM and a frontier model. GPQA, SWE-bench, and HLE are the evals people usually compare first.
Claude Opus 5 scores 96% on SWE-bench Verified. Pair that score with Claude API pricing from Anthropic on this page: a slightly worse SWE-bench model can still win if it is much cheaper per million tokens. Open the SWE-bench or coding leaderboard from the sidebar for the full ranking, then jump into an LLM comparison against a coding specialist.
Claude Opus 5 has a published knowledge cutoff of 2026-05. Facts after that date are not guaranteed to be in the weights. For current events you still need retrieval or tools, which adds input tokens and therefore API cost per million tokens.
Use the Compare picker on this page to start an LLM comparison. Search by model or provider, pick a second model, and AnotherWrapper opens a dedicated Claude Opus 5 vs page with per-million-token prices, blended 1M-in / 1M-out cost, context window, throughput, and benchmarks. You can also open any model from the sidebar, or go back to the LLM pricing table to sort the full index.
The cheapest LLM alternative depends on whether you optimize for blended token cost, coding evals, or context window. Start with the popular matchups on this page, then sort the LLM pricing table by blended cost to see which hosted APIs undercut Claude Opus 5. Open-weight models can be cheaper still if you self-host, but that is not the same as Claude API pricing from Anthropic on this page.
Claude Opus 5 is called through Anthropic's API with an API key. Bill against input and output tokens separately; cache or shorten prompts if spend is high. If you are shipping a full product, AnotherWrapper includes pre-built API routes and templates for Anthropic and 5+ other providers with auth, payments, and deployment already configured.
This Claude Opus 5 page tracks the latest published Claude API pricing from Anthropic from Anthropic, quoted per million tokens. List rates can differ from invoices because of prompt caching, batch discounts, committed-use tiers, and private contracts. Official rate sheet: https://platform.claude.com/docs/en/about-claude/pricing. Benchmark scores come from official publications and independent evals, not from a private lab run by AnotherWrapper.
Claude Opus 5 has a measured throughput of about 3.437096666269855 tokens per second (tok/s). Throughput is how fast completions stream once the model starts generating; time-to-first-token can still lag under load. Faster APIs matter when you are building chat or agents, even if the per-million-token price is the same.
Claude Opus 5 is a proprietary model from Anthropic. Current API pricing is $5.00 per million input tokens and $25.00 per million output tokens, with a 1M token context window. A blended 1M-in / 1M-out workload costs $30.00.
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