Anthropic: Claude Opus 4.8 Coding Benchmark
Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token...
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Coding Performance
Coding benchmarks and performance metrics for development tasks
Kilo Bench
- % Completion on Terminal Bench 2.0
- 67.6%
- Cost per attempt (USD)
- $85.19
- Benchmark
- Terminal Bench 2.0
Official Kilo eval results. Cost is averaged per complete benchmark attempt.
Speed & Efficiency
Performance metrics from Artificial Analysis
OpenClaw Benchmarks
PinchBench measures how Anthropic: Claude Opus 4.8 performs on real OpenClaw agent tasks: multi-step execution, tool use, recovery, latency, and cost.
Average score
#4 of 50 official models
Average time
5 runs · per OpenClaw task
Average cost
Per benchmark run
Category breakdown
Best verified PinchBench v2 run by OpenClaw task family.
Top task results
Highest-scoring benchmark tasks from the same submission.
Autonomous task execution
Anthropic: Claude Opus 4.8 shows strong average success across OpenClaw-style benchmark runs, useful for recurring research, browser, and file-based automations.
Tool use and recovery
PinchBench tasks stress multi-step planning, tool calls, and judge-verified completion rather than single prompt coding snippets.
Agent workflow fit
Its deliberate average runtime and premium run cost help set expectations for long-running KiloClaw agents and production workflows.
Agentic benchmarks from the PinchBench Leaderboard
Real-World Usage
Real-world usage statistics from the Kilo Code community
Weekly Token Usage
Mode Rankings (Last Week)
Where this model ranks for each built-in mode
Code
Write, modify, and refactor code
Ask
Get answers and explanations
Debug
Diagnose and fix software issues
Orchestrator
Coordinate tasks across multiple modes
Real-world metrics from the Kilo Code Leaderboard
Pricing
Cost per 1 million tokens
Example Cost
Analyzing a 10,000 line codebase (≈40k input tokens, 10k output tokens) costs approximately $0.4500
Coding Capabilities
Features and parameters relevant to coding tasks
Coding Features
Pricing details from OpenRouter
Technical Details
Architecture and implementation specifications
- Model ID
- anthropic/claude-opus-4.8
- Artificial Analysis Slug
- claude-opus-4-8
- Created
- May 27, 2026
- Tokenizer
- Claude
- Input Modalities
- TextImageFile
- Context Window
- 1,000,000 tokens
- Max Completion Tokens
- 128,000 tokens
- Input Price
- $5.00 per 1M tokens
- Output Price
- $25.00 per 1M tokens
- Cache Read Price
- $0.50 per 1M tokens
- Cache Write Price
- $6.25 per 1M tokens
- Content Moderation
- Disabled
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