Claude Opus 4.7 Analysis: Top Intelligence but High Cost and Verbosity

Claude Opus 4.7 Performance Analysis
Artificial Analysis has published detailed intelligence, performance, and pricing data for Claude Opus 4.7 (Adaptive Reasoning, Max Effort). This proprietary model from Anthropic was released in April 2026 and supports text and image input with text output.
Key Metrics and Rankings
- Intelligence: #1/133 models with a score of 57 on the Artificial Analysis Intelligence Index (average is 31)
- Speed: #71/133 models at 50 output tokens per second (average is 61)
- Input Price: #116/133 models at $5.00 USD per 1M tokens (average is $1.40)
- Output Price: #117/133 models at $25.00 USD per 1M tokens (average is $8.40)
- Verbosity: #96/133 models, generating 100M tokens during evaluation (average is 35M)
Technical Specifications
- Reasoning model (lightbulb icon indicates reasoning capability)
- 1 million token context window (~1500 A4 pages of size 12 Arial font)
- Knowledge cutoff: January 1, 2026
- Evaluation cost: $4406.45 to run on the Intelligence Index
Comparison Context
The model is compared against 133 models in its class. Proprietary models like Claude Opus 4.7 are compared across proprietary and open weights models of the same price range using a blended 3:1 input/output price ratio. The Artificial Analysis Intelligence Index v4.0 incorporates 10 evaluations: GDPval-AA, τ²-Bench Telecom, Terminal-Bench Hard, SciCode, AA-LCR, AA-Omniscience, IFBench, Humanity's Last Exam, GPQA Diamond, and CritPt.
The analysis concludes that Claude Opus 4.7 is among the leading models in intelligence but is particularly expensive compared to other models of similar price. It's also slower than average and very verbose in its output.
📖 Read the full source: HN AI Agents
👀 See Also

Claude Code source code reportedly leaked, revealing agent architecture details
The source code for Claude Code, Anthropic's AI coding agent, appears to have been leaked, containing the full repository with system prompts, agent loop implementation, and tool calling infrastructure.

Running OpenClawd for Free: Successes and Challenges
In a recent post on r/clawdbot, a member shares their experience running OpenClawd without API keys, discussing their successes and the challenges faced.

Claude VS Code Extension Broken on Windows After Hardcoded Linux Path in Recent Update
Anthropic's recent VS Code extension update hardcodes a Linux path, breaking the extension on Windows. Downgrading to the previous version restores functionality.

Claude Cowork UX Problem: Persistent Input Box Creates False Continuity Expectations
A user identifies a UX problem in Claude Cowork where the persistent text input box maintains draft text across task switches but resets context and loses attachments, creating contradictory signals about continuity.