Claude Opus 4.6
Anthropic's flagship multimodal model with a 1M token context window, state-of-the-art coding and reasoning, and dynamic agentic capabilities.
Get API key- Provider
- Anthropic
- Price
- $6 in · $30 out / 1M
- Context window
- 1M tokens
- Released
- February 5, 2026
- License
- Proprietary
What is Claude Opus 4.6?
Claude Opus 4.6 is Anthropic's flagship multimodal AI model, released in February 2026. It features a 1M token context window, advanced reasoning, vision, and agentic coding capabilities, and leads frontier benchmarks for complex knowledge work, long-document analysis, and autonomous software engineering.
Use it privately on Venice
On Venice, Claude Opus 4.6 runs under an anonymized privacy tier — your prompts are not stored, profiled, or used for training. You get the same frontier coding and reasoning model Anthropic ships, accessed permissionlessly with per-token billing and no subscription lock-in.
What can it do?
- •State-of-the-art coding and agentic performance — Anthropic reports top scores on Terminal-Bench 2.0 and leads all frontier models on Humanity's Last Exam.
- •1M token context window supports deep analysis of large codebases, long legal documents, and extended financial models in a single pass.
- •Multimodal reasoning with vision, tool use, function calling, structured JSON output, and web search for autonomous workflows.
- •Dynamic reasoning controls let you calibrate effort from low to max for complex debugging and multi-step planning.
- •Leading performance on economically valuable knowledge work benchmarks including GDPval-AA.
- •Closed proprietary weights — cannot be self-hosted, fine-tuned, or run offline.
- •Premium per-token pricing makes it expensive for high-volume or exploratory use compared to open-weights rivals.
- •Slower and more compute-intensive than smaller models like Claude Sonnet 4.6 or GLM Flash variants.
- •Not uncensored on Venice — standard safety filters apply.
Claude Opus 4.6 capabilities
- Tool use / function calling
- Vision (image input)
- Reasoning
- Web search
- Code-optimized
- Structured output (JSON schema)
- Audio input
- Video input
- Multiple image inputs
- Log probabilities
How to use it via API
Venice exposes an OpenAI-compatible API. Swap your base URL and call claude-opus-4-6.
curl https://api.venice.ai/api/v1/chat/completions \
-H "Authorization: Bearer $VENICE_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "claude-opus-4-6",
"messages": [{ "role": "user", "content": "Explain quantum tunneling simply." }]
}'Specifications
Pricing
Billed per token on Venice: $6 per 1M input tokens and $30 per 1M output tokens.
New Venice accounts include a free daily allowance and 500 welcome credits — no credit card required.
Claude Opus 4.6 vs alternatives
| Model | Context window | Strongest at | Open weights | Price (Venice) |
|---|---|---|---|---|
| Claude Opus 4.6 | 1M tokens | Coding & reasoning | No | $6 / $30 |
| Claude Opus 4.7 | 1M tokens | Coding & reasoning | No | $6 / $30 |
| Claude Sonnet 4.6 | 1M tokens | Fast coding | No | $3.60 / $18 |
| DeepSeek V3.2 | 160K tokens | Open-weight coding | Yes | $0.33 / $0.48 |
| Kimi K2.6 | 256K tokens | Long-context reasoning | Yes | $0.85 / $4.66 |
Anthropic's flagship with 1M context, dynamic reasoning, and leading agentic coding performance.
What is it good for?
- •Complex multi-file software refactoring and large codebase architecture.
- •Long-document legal review, financial modeling, and enterprise research.
- •Autonomous agentic tasks combining web search, tool use, and reasoning.
- •Debugging and code review across extensive repositories.
- •Multimodal analysis of diagrams, charts, screenshots, and documents.
Prompting tips
- •Break complex coding requests into explicit steps — Opus 4.6 plans more carefully with structured instructions.
- •Use max reasoning effort for difficult architecture decisions or deep debugging sessions.
- •Leverage the 1M context by including full file trees or lengthy documents in a single prompt.
- •For vision tasks, upload high-resolution images and ask specific questions about diagrams or UI elements.
- •Combine function calling with reasoning to build autonomous multi-step workflows.
Version history
Predecessor flagship.
Current — 1M context, state-of-the-art coding and reasoning.
Successor with stronger vision and multi-step consistency.
CurrentLatest Opus with hybrid reasoning and expanded agentic autonomy.
Frequently asked questions
Claude Opus 4.6 is Anthropic's flagship multimodal AI model, released in February 2026. It features a 1M token context window, advanced reasoning, vision, and agentic coding capabilities, and leads frontier benchmarks for complex knowledge work and autonomous software engineering.
Venice bills per token at $6 per 1M input tokens and $30 per 1M output tokens, with cached input priced at $0.60 per 1M. There is no subscription required to use it.
No. Claude Opus 4.6 is closed and proprietary to Anthropic. Its weights are not available for self-hosting or fine-tuning.
Yes. On Venice it supports function calling, structured JSON output, reasoning, web search, and vision inputs — enabling complex autonomous workflows that combine multiple tools.
Choose Opus 4.6 for the hardest coding, reasoning, and long-context tasks where maximum accuracy matters. Sonnet 4.6 delivers strong performance at a lower token cost for everyday development and drafting work.
It excels at complex software engineering, multi-file refactoring, long-document legal and financial analysis, autonomous research with web search, and multimodal reasoning over images, diagrams, and charts.
Yes. Venice runs it under an anonymized privacy tier — prompts are not stored, profiled, or used for training. You interact without building a persistent personal history.
Yes. It accepts image inputs including multiple images per prompt, and can reason over diagrams, screenshots, charts, and documents alongside text.
Related models
Run Claude Opus 4.6 privately.
No prompt logging. No data used for training. Free to start — no credit card.
