Claude Opus 4.8 by Anthropic — Pricing, Benchmarks & Real Outputs
Share
Loading...
Compare Claude Opus 4.8
Alternatives to Claude Opus 4.8
Claude Opus 4.8's competitors have been quietly putting in work.
Claude Opus 4.8's competitors have been quietly putting in work.
Claude Opus 4.8's competitors have been quietly putting in work.
Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, offers reasoning support, and has a 1M-token context window. Built for highly autonomous agents, long-horizon agentic work, and memory-driven tasks where coherence over extended sessions matters, it is particularly strong on multi-step reasoning, complex coding, and end-to-end project orchestration across large codebases, multi-stage debugging, and long-running asynchronous agent pipelines. Beyond coding, it handles knowledge work such as drafting documents, building presentations, and analyzing data while maintaining quality across very long outputs.
fromimport openai OpenAI
client = OpenAI(
"https://openrouter.ai/api/v1" base_url=,
"$OPENROUTER_API_KEY" api_key=,
)
response = client.chat.completions.create(
"anthropic/claude-opus-4.8" model=,
"role""user""content""Hello!" messages=[{: , : }],
)
print(response.choices[0].message.content)Set OPENROUTER_API_KEY with your OpenRouter API key from openrouter.ai/keys.
Also on Amazon Bedrock · Google Vertex AI · Microsoft Foundry
Pushes firmly toward the ethically and legally correct action without moralizing. Refuses false binaries ("the decision is not disclose vs. wait; disclosure is mandatory") and will not let the user rationalize a harmful path, while still delivering a pragmatic, executable plan.
Interrogates the premise before solving it. When a question hides a dangerous assumption, it surfaces and corrects that assumption first, then commits to a concrete path. Pushes back on framing without becoming contrarian, and stays grounded in practical execution rather than abstract objection.
Taste is judged on an uncapped scale, originality first. The space past 100 is craft today's models rarely reach.
Unique words vs. total words. Higher = richer vocabulary.
Average words per sentence.
"Might", "perhaps", "arguably" per 100 words.
**Bold** markers per 1,000 characters.
Bullet and numbered list items per 1,000 characters.
Markdown headings per 1,000 characters.
Emoji per 1,000 characters.
"However", "moreover", "furthermore" per 100 words.
53 outputs from Claude Opus 4.8
Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, offers reasoning support, and has a 1M-token context window. Built for highly autonomous agents, long-horizon agentic work, and memory-driven tasks where coherence over extended sessions matters, it is particularly strong on multi-step reasoning, complex coding, and end-to-end project orchestration across large codebases, multi-stage debugging, and long-running asynchronous agent pipelines. Beyond coding, it handles knowledge work such as drafting documents, building presentations, and analyzing data while maintaining quality across very long outputs.
fromimport openai OpenAI
client = OpenAI(
"https://openrouter.ai/api/v1" base_url=,
"$OPENROUTER_API_KEY" api_key=,
)
response = client.chat.completions.create(
"anthropic/claude-opus-4.8" model=,
"role""user""content""Hello!" messages=[{: , : }],
)
print(response.choices[0].message.content)Set OPENROUTER_API_KEY with your OpenRouter API key from openrouter.ai/keys.
Also on Amazon Bedrock · Google Vertex AI · Microsoft Foundry
Pushes firmly toward the ethically and legally correct action without moralizing. Refuses false binaries ("the decision is not disclose vs. wait; disclosure is mandatory") and will not let the user rationalize a harmful path, while still delivering a pragmatic, executable plan.
Interrogates the premise before solving it. When a question hides a dangerous assumption, it surfaces and corrects that assumption first, then commits to a concrete path. Pushes back on framing without becoming contrarian, and stays grounded in practical execution rather than abstract objection.
Taste is judged on an uncapped scale, originality first. The space past 100 is craft today's models rarely reach.
Unique words vs. total words. Higher = richer vocabulary.
Average words per sentence.
"Might", "perhaps", "arguably" per 100 words.
**Bold** markers per 1,000 characters.
Bullet and numbered list items per 1,000 characters.
Markdown headings per 1,000 characters.
Emoji per 1,000 characters.
"However", "moreover", "furthermore" per 100 words.
53 outputs from Claude Opus 4.8