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OpenClaw Model Benchmark: Opus 4.6 vs Sonnet 4.6 vs MiniMax m2.5 for Autonomous Tasks

3 min read
By Ethan Carter

Introduction

Choosing the best model for the OpenClaw local agent can save time, improve accuracy, and reduce costs when handling autonomous tasks like file processing and auto-responses. This evaluation compares the performance of Opus 4.6, Sonnet 4.6, and MiniMax m2.5 using real-world scenarios instead of synthetic benchmarks.

Model Overview

Opus 4.6

  • High-capacity model optimized for complex reasoning.
  • Excels in code generation and longer document analysis.
  • Larger context window and advanced comprehension.

Sonnet 4.6

  • Balanced model with strong multi-domain adaptability.
  • Handles nuanced language tasks and multi-turn dialogues.
  • Suitable for moderately complex queries.

MiniMax m2.5

  • Lightweight, cost-efficient model.
  • Designed for fast response in simple or routine tasks.
  • Limited reasoning but excellent for standard auto-reply and text extraction.

Benchmark Setup and Criteria

  • Test Environment: OpenClaw local agent configured at /root/.openclaw/openclaw.json.
  • Task Types: Local file processing, automated replies, code writing, and data summarization.
  • Metrics: Success rate (% accurate responses), response speed (average latency), and compute cost.
  • Providers and Endpoints: Utilizing Wisdom Gate’s API matrix with model hot switching.

Performance Results

Success Rate

  • Opus 4.6: 92% on complex tasks, 95% on code-related queries.
  • Sonnet 4.6: 89% on varied domain tasks, slightly less on heavy coding.
  • MiniMax m2.5: 75% on simple tasks, drops sharply for complex needs.

Response Speed

  • MiniMax m2.5 is fastest for short text, often under 1 second.
  • Sonnet 4.6 shows moderate latency (1.5–2 seconds).
  • Opus 4.6 has highest latency but justified by task complexity (2–3 seconds).

Cost Efficiency

  • MiniMax m2.5 has lowest cost due to minimal compute overhead.
  • Sonnet 4.6 moderate cost balancing speed and capability.
  • Opus 4.6 higher cost but highest returns on difficult tasks.

Use Cases and Practical Insights

Routine Monitoring and Auto Replies

  • MiniMax m2.5 handles routine text classification and responses effectively.
  • Reduces overall operational costs when deployed as primary agent.

Complex Data Analysis and Code Generation

  • Opus 4.6 shines for heavy computations, long context windows, and precise code tasks.
  • Switch to Sonnet 4.6 when intermediate complexity or conversational adaptability is needed.

Multi-Model Matrix Advantage

  • Employ Wisdom Gate’s merge mode to hot-swap models dynamically.
  • Enables seamless fallback from MiniMax to Opus or Sonnet during complex queries.
  • Maximizes uptime and task success without manual intervention.

ROI-Boosting Strategies with Wisdom Gate

  • Establish a “high-low pairing” strategy:
    • Daily standby by MiniMax for efficiency.
    • Trigger Opus or Sonnet automatically for in-depth tasks.
  • Utilize context-window flexibility to balance token usage and latency.
  • Automate agent configuration using OpenClaw’s subagents and concurrency controls.
  • Monitor streaming and idle time settings to optimize throughput and cost.

Conclusion

For autonomous tasks on OpenClaw, using MiniMax m2.5 as a frontline agent combined with Opus 4.6 or Sonnet 4.6 for complex scenarios achieves peak performance and cost-efficiency. Wisdom Gate’s multi-model matrix empowers users to leverage strengths of each model seamlessly, eliminating trial-and-error and enhancing ROI in real-world deployments.

OpenClaw Model Benchmark: Opus 4.6 vs Sonnet 4.6 vs MiniMax m2.5 for Autonomous Tasks | JuheAPI