Claude Opus 4.6 Benchmarks: Comprehensive Breakdown & Comparison (February 2026)
Published: February 6, 2026 | Dargslan Publishing Team
Anthropic launched Claude Opus 4.6 on February 5, 2026 — upgrading their flagship model with stronger agentic capabilities, better long-horizon planning, improved self-correction, a 1 million token context window (beta), and the new adaptive thinking mode.
The release includes impressive benchmark results across agentic coding, computer use, tool usage, search, multidisciplinary reasoning, financial analysis, office tasks, and novel problem-solving. Opus 4.6 frequently leads or ties for the top spot against strong competitors like Opus 4.5, Sonnet 4.5, Gemini 3 Pro, and OpenAI's GPT-5.2.
Key Benchmark Highlights – Claude Opus 4.6 Performance
| Benchmark | Opus 4.6 | Opus 4.5 | Sonnet 4.5 | Gemini 3 Pro | GPT-5.2 (all models) |
|---|---|---|---|---|---|
| Agentic terminal coding Terminal-Bench 2.0 |
65.4% | 59.8% | 51.0% | 56.2% | 64.7% |
| Agentic coding SWE-bench Verified |
80.8% | 80.9% | 77.2% | 76.2% | 80.0% |
| Agentic computer use OSWorld |
72.7% | 66.3% | 61.4% | — | — |
| Agentic tool use t²-bench (Retail / Telecom) |
91.9% / 99.3% | 88.9% / 98.2% | 86.2% / 98.0% | 85.3% / 98.0% | 82.0% / 98.7% |
| Scaled tool use MCP Atlas |
59.5% | 62.3% | 43.8% | 54.1% | 60.6% |
| Agentic search BrowseComp |
84.0% | 67.8% | 43.9% | 59.2% | 77.9% |
| Multidisciplinary reasoning Humanity's Last Exam (without / with tools) |
40.0% / 53.1% | 30.8% / 43.4% | 17.7% / 33.6% | 37.5% / 45.8% | 36.6% / 50.0% |
| Agentic financial analysis Finance Agent |
60.7% | 55.9% | 54.2% | 44.1% | 56.6% |
| Office tasks GDPval-AA Elo |
1606 | 1416 | 1277 | 1195 | 1462 |
| Novel problem-solving ARC AGI 2 |
68.8% | 37.6% | 13.6% | 45.1% | 54.2% |
Note: Some scores (especially "with tools") include augmented setups (web search, code execution, context compaction up to 3M tokens, max effort + adaptive thinking). Raw without-tools scores show core model reasoning gains. Terminal-Bench 2.0 and BrowseComp show particularly strong agentic/search leadership.
Key Takeaways from the Benchmarks
- Agentic & Coding Strength: Leads Terminal-Bench 2.0 (65.4%) for terminal-based agentic coding and very close on SWE-bench Verified (~80.8%).
- Computer Use & Tool Mastery: Tops OSWorld (72.7%) and t²-bench retail/telecom categories.
- Search & Reasoning Leap: 84.0% on BrowseComp (hard multi-step web search) and big jumps in Humanity's Last Exam & ARC-AGI-2 novel problem-solving.
- Knowledge Work Dominance: Highest GDPval-AA Elo (1606), a ~144-point lead over GPT-5.2 — translating to better performance on finance, legal, and professional tasks ~70% of the time.
- Context & Long-Horizon Gains: The 1M token beta + adaptive thinking enables sustained performance on very long tasks without "context rot".
Try Claude Opus 4.6 + Pair It with Our Free Guides
Access Opus 4.6 today on claude.ai or via the Anthropic API (model: claude-opus-4-6).
Supercharge your prompts with our free 2026 technical books:
- Docker & Podman in 2026 – perfect for agentic migration planning
- Bash Mastery 2026 – harden scripts with deep reasoning
- Git from Beginner to GitOps Hero – review repos agentically
Opus 4.6 represents a meaningful step forward in reliable, long-running agentic AI — especially valuable for DevOps, platform engineering, and complex code/refactor workflows in 2026.
— The Dargslan Publishing Team
February 6, 2026