MajorAnthropicNew Launchclaude-opus-4-6Verified
Claude Opus 4.6 introduced (1M context beta, 128k output, $5/$25 per MTok)
Anthropic introduced Claude Opus 4.6 with improved coding, long-horizon agentic work, and a 1M token context window (beta). Standard API pricing remains $5/$25 per million input/output tokens, with premium long-context pricing above 200K input tokens.
Feb 5, 2026Views:14Effective: Feb 5, 2026
Impact Assessment
Cost0
Reliability2
Migration0
Quality5
Compliance0
What changed
- New model id: claude-opus-4-6
- 1M token context window (beta) with premium pricing when input > 200K tokens
- Up to 128k output tokens
- New API controls: adaptive thinking + effort levels; context compaction (beta)
Pricing (API)
- Standard: $5 / MTok input, $25 / MTok output
- Long-context (>200K input tokens with 1M context enabled): $10 / MTok input, $37.50 / MTok output
- Batch: $2.50 / MTok input, $12.50 / MTok output
Recommended actions
- Validate code generation/refactor quality and long-running agent behavior on your repo.
- If you plan to use 1M context, budget for premium long-context rates and verify your org eligibility (tier 4 / custom limits).
Changes
No diff data available.
Recommended Actions
Recommended
Test Opus 4.6 on your main coding workflows (generation, refactor, review, debugging), and compare against your current baseline model.
Recommended
If enabling 1M context, add cost guardrails for long-context premium pricing and validate org eligibility.
Sources
blog
Introducing Claude Opus 4.6
Pricing remains the same at $5/$25 per million tokens; Opus 4.6 adds 1M context (beta) and 128k output tokens.
docs
Claude API Pricing
Long context pricing: Opus 4.6 standard $5/$25 per MTok; premium long-context above 200K input tokens $10/$37.50.
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