AnthropicReleased on Jul 24, 2026

Claude Opus 5: API Pricing, Context Window & Benchmarks

Claude Opus 5 is a language model from Anthropic, released in July 2026, with multimodal input, a 1M-token context window, and pricing from $5.00/M input and $25.00/M output.

Claude Opus 5 is Anthropic's flagship general-access model, built for efficient agentic coding, knowledge work, scientific research, computer use, and problem-solving. Anthropic reports state-of-the-art results on Frontier-Bench v0.1 and

Input
TextImage
Output
Text

Claude Opus 5 benchmarks

Rankings

Quality Tracker

Claude Opus 5 Performance Across Datasets

Scores sourced from the model's scorecard, paper, or official blog posts

LLM Stats Logollm-stats.com - Fri Jul 24 2026
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Claude Opus 5 pricing

Providers

Claude Opus 5 starts at $5.00 per million input tokens and $25.00 per million output tokens via Anthropic.

ProviderInput $/MOutput $/MContext in / outTTFT p50 / p95 sOutput avg / p5 c/sSuccess 7dModalities in / out
Anthropic logoAnthropic
$5.00$25.001.0M/128.0K
22.45/22.45
157/157
66.67%(6)
/

Cached input is the discounted price for prompt tokens served from a provider cache. TTFT is time to first token. Output is characters per second; p5 is the sustained floor exceeded by 95% of observed requests. Success is calculated from completed versus failed requests over the trailing seven days.

Claude Opus 5 context window

Input and output token limits for Claude Opus 5, plus how it ranks on long-context understanding.

InputOutput
1Mtokens
128Ktokens
1.5k pages of text
1M
8K128K1M

Claude Opus 5 API

POST/v1/chat/completions

Run a request to see the response

Use it in your code

Billed at $5.00 input / $25.00 output per 1M tokens through the LLM Stats gateway.

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://gateway.llm-stats.com/v1"
)

response = client.chat.completions.create(
    model="claude-opus-5",
    messages=[
        {"role": "user", "content": "What is machine learning?"}
    ]
)

print(response.choices[0].message.content)

Need an API key? Create one above in the playground, or read the API documentation.

Claude Opus 5 latency

Claude Opus 5 time to first token, sustained output throughput, and failed-request rate from live API traffic over the trailing 7 days.

Provider operational metrics

Time to first token, output throughput, and failed-request rate from live API traffic

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Claude Opus 5 examples

Recent arena outputs from Claude Opus 5, picked from the highest-ranked matchups.

Claude Opus 5 license

Claude Opus 5 is a proprietary model available under its provider's product and API terms.

License
Proprietary
Hosted access

Proprietary license - usage restrictions apply

Claude Opus 5 resources

Official sources for Claude Opus 5: api documentation, official playground, paper or system card, official launch post.

Claude Opus 5 vs other models

The most-compared alternatives to Claude Opus 5 are Claude Mythos Preview, Kimi K3, GPT-5.5. Open any pair side-by-side for benchmarks, pricing, context, and latency.

Models like Claude Opus 5

Models ranked just above and below Claude Opus 5 by LLM Stats score.

 

Claude Mythos Preview

Score pending
 

Kimi K3

Score pending
 

GPT-5.5

Score pending
 

GPT-5.6 Sol

Score pending
 

Claude Fable 5

Score pending
 

GPT-5.5 Pro

Score pending

FAQ

Common questions about Claude Opus 5.

When was Claude Opus 5 released?

Claude Opus 5 was released on July 24, 2026 by Anthropic. This is the official Claude Opus 5 release date tracked on LLM Stats.

How much does Claude Opus 5 cost?

Claude Opus 5 costs $5.00 per million input tokens and $25.00 per million output tokens through the LLM Stats API, which works with any OpenAI-compatible SDK. Across tracked providers, the lowest price is $5.00 per million input tokens via Anthropic.

Is Claude Opus 5 available via API?

Yes. Claude Opus 5 is available through the LLM Stats API and works with any OpenAI-compatible SDK — point your client at the gateway base URL and pass the model name. It is served by 1 provider tracked on LLM Stats.

Who created Claude Opus 5?

Claude Opus 5 was created by Anthropic.

What is the license for Claude Opus 5?

Claude Opus 5 is released under the Proprietary license.

Is Claude Opus 5 multimodal?

Yes, Claude Opus 5 is multimodal and can accept both text and images as input.

What is Claude Opus 5 latency?

Claude Opus 5 p95 time to first token is 22.45 seconds via Anthropic over the trailing 7 days. Lower time to first token means the model begins responding sooner for chat, agents and API workloads.

Where can I use Claude Opus 5?

Claude Opus 5 is available through 1 provider including Anthropic.

Where is the Claude Opus 5 paper or technical report?

Claude Opus 5 has a paper or technical report available at https://www.anthropic.com/claude-opus-5-system-card. Use that source for architecture, training, release and evaluation details.

What models should I compare Claude Opus 5 against?

Common Claude Opus 5 comparisons include Claude Opus 5 vs Claude Mythos Preview, Claude Opus 5 vs Kimi K3, Claude Opus 5 vs GPT-5.5. Compare them side by side for benchmark scores, pricing, context window, latency and API availability.