OpenRouter model

Anthropic: Claude Opus 4.6

Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks. It is built for agents that operate across entire workflows rather than single prompts, making it especially effective...

Provider
OpenRouter
Availability
Available
Model ID
anthropic/claude-opus-4.6
Snapshot
2026-10-07
Evaluation Verdict

Claude Opus 4.6 pushes deep reasoning to 78.0% on SWE-bench Verified and 90.0% on AIME, delivering unprecedented mathematical precision and architectural mastery.

Anthropic: Claude Opus 4.6 Benchmarks & Agentic Accuracy

Verified primary research & developer preference metrics

Primary Sources Verified
SWE-bench Verified
78%
Extended ThinkingAnthropic Preview ↗
LiveCodeBench
68.5%
ThinkingLiveCodeBench ↗
LMSYS Coding Elo
1438Elo
Coding ArenaLMSYS Arena ↗
AIME 2024 / 2025
90%
ThinkingAnthropic Preview ↗
Pricing ($ / 1M tokens)
$15/ $75
$0.5 cached readStandard API Pricing

What This Means in Real Software Development

  • 90.0% score on AIME competition problems demonstrates unmatched multi-hop deductive capability.
  • 78.0% SWE-bench Verified pass rate, finding subtle bugs in deep async pipelines that defeat standard models.
  • Superior code verification: writes formal assertions and comprehensive test matrices automatically.
  • High-value model for complex compiler internals, distributed consensus algorithms, and database engines.

Swarm Multi-Agent Topology

Tier 1: Senior Principal ArchitectRole: Primary / Planner

Best Paired With: Gemini 3.8 Flash for subagent execution

Deconstructs complex requirements into airtight Task Programs with deterministic validation criteria.

Git Worktree Isolation Advantage:

Executes deep architectural refactors inside dedicated Git worktrees with 100% test isolation.

What Developers & Practitioners Are Saying

Real-world field observations, production strengths, and developer consensus

Field Consensus

"Frontier reasoning engine designed for mission-critical engineering, formal verification, and complex security audits."

Verified Real-World Strengths

  • Near-zero hallucination on static analysis and security vulnerability triage
  • World-class dependency graph planning for multi-stage pipelines
  • 78.0% on SWE-bench Verified with state-of-the-art multi-step planning

Production Caveats & Gaps

  • High per-token cost makes uncurated context dumps expensive
  • Thinking tokens add latency to interactive CLI turns
Benchmark Reality Check

What the benchmark tests: Measures advanced multi-file regression prevention and formal logic across enterprise suites.

Production caveat: Requires isolated git worktree execution to safely review massive automated refactors before merging.

Primary Sources & Methodology Citations

Head-to-Head Frontier Comparisons: Anthropic: Claude Opus 4.6 vs Rivals

Standardized, side-by-side benchmark & economics comparison against peer models

Flagship Comparative Matrix
ModelRole / TierSWE-benchLiveCodeBenchLMSYS EloAIMEInput / Output
Anthropic: Claude Opus 4.6OpenRouterCurrent
Tier 1: Senior Principal Architect78%68.5%143890%$15 / $75
Tier 1: Frontier Architect & Deductive Specialist71.7%76.2%141592.4%$5 / $20
Tier 1: Frontier Large-Context Architect71%62.4%139586.5%$2.5 / $10
Tier 1: Frontier Systems Specialist58.5%54.2%137576%$2 / $8
Tier 1: Master Architect75.8%67.2%143587.5%$3 / $15

Anthropic: Claude Opus 4.6 model overview

Anthropic: Claude Opus 4.6 is listed in the public Swarm catalog through OpenRouter. This page summarizes the verified catalog fields used by Swarm without claiming real-time access for every provider account.

Provider
OpenRouter
Family
OpenRouter
Context window
1M tokens
Thinking support
off · low · medium · high · max
Availability status
Available
Catalog ID
openrouter/anthropic/claude-opus-4.6
  • File input
  • Image input
  • Text input
  • Text output
  • Reasoning
  • Tools
  • Structured output
  • JSON

Run Anthropic: Claude Opus 4.6 in Swarm

Verified CLI workflow & multi-agent architecture

Quickstart Guide →
bash — swarm run
$swarm ctl model set --provider openrouter --model openrouter/anthropic/claude-opus-4.6

# Or switch interactively inside the terminal TUI:

>/models

Subagent Role Matrix

Assign Anthropic: Claude Opus 4.6 to specialized system roles in ~/.swarm/config.json:

  • Primary / Planner: Orchestrates full task DAGs and multi-stage pipelines.
  • Coder Subagent: Generates code and unit tests inside private Git worktrees.
  • Finder Subagent: Performs read-only code search, symbol discovery, and mapping.
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Public catalog snapshot. Catalog availability is not a real-time provider status or an access guarantee.