Claude Sonnet 5

anthropic

Cross-checked

A
Coding Index
105.06
Coding tier
A
Context
1,000,000
Input Price
$2
per 1M tokens
Output Price
$10
per 1M tokens

DeepSeek V4 Flash 0731 = 100. The index reflects two shared tests, not capability multiples or statistically established gaps. Results reflect particular model configurations. Agent harnesses, reasoning effort, tools, budgets and tasks may differ. Close indices do not establish superiority. B describes a relative position in this selected group, not an inability to code.

OpenRouter quote 2026-10-11
Benchmark evidence and ranking method · Claude Sonnet 5

Cross-checked

Terminal-Bench 4.0 · Claude Code · max: 12.42% · 95% CI ± 3.06%

Artificial Analysis · Claude Sonnet 5 (Adaptive Reasoning, Max Effort)

Test configuration: max

Terminal-Bench 2.1: 80.52% · SciCode: 54.28%

LiveBench · 2026-06-25 · claude-sonnet-5-xhigh-effort

Coding: 80.68% · Agentic Coding: 59.39%

ModelRank assigns editorial tiers using public coding evidence, not automatic index thresholds or statistically proven classes. Price, speed, context size and sponsorship do not affect tiers.

DeepSeek V4 Flash 0731 = 100. The index reflects two shared tests, not capability multiples or statistically established gaps.

Results reflect particular model configurations. Agent harnesses, reasoning effort, tools, budgets and tasks may differ. Close indices do not establish superiority. B describes a relative position in this selected group, not an inability to code.

Data checked: 2026-09-10. Snapshot date is the retrieval date, not necessarily the evaluation date.

Compare with Alternatives

Claude Sonnet 5 vs GLM-5.3-Flash (A) → Claude Sonnet 5 vs GPT-5.6 Luna (A) → Claude Sonnet 5 vs Qwen3.8-Next-Flash (A) → Claude Sonnet 5 vs Claude Fable 5 (S) →

Related Analysis & Reviews

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Claude Sonnet 5 vs Opus 4.8 comparison: 72.1% SWE-bench, agentic tasks at 40% the cost. Pricing $2→$3/M tokens. Should you upgrade from Sonnet 4.6? Full review.

Frequently Asked Questions

What is Claude Sonnet 5's coding score and ranking tier?

Claude Sonnet 5 by anthropic is rated as Tier A on ModelRank with a coding score of 105.06 (Reference baseline = 100) as a reference index derived from public benchmark evidence. Tiers are editorial assessments; the index does not establish real-world capability differences.

What is the API pricing and context window for Claude Sonnet 5?

Claude Sonnet 5 features a 1,000,000 token context window. Pricing is $2 per 1M input tokens and $10 per 1M output tokens (OpenRouter quote).

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Last updated: October 11, 2026