Claude Sonnet 5 API Pricing

Anthropic · released 2026-06-30

Also searched as: Sonnet 5 pricing

Claude Sonnet 5 price

$2.00
input / 1M tokens
0.200¢ / 1K
$10.00
output / 1M tokens
1.00¢ / 1K
$4.00
blended / 1M tokens
0.400¢ / 1K

Official list price from Anthropic, as recorded by models.dev

What it actually costs

WorkloadTokensCost
Short chat reply500 in / 300 out0.4¢
RAG query4,000 in / 500 out$0.0130
Long document summary50,000 in / 1,000 out$0.1100
Code review of a 2k-line file30,000 in / 2,000 out$0.0800
1,000 chat replies/day for 30 days30,000 × (500 in / 300 out)$120.00

Cost = (input tokens ÷ 1,000,000 × $2.00) + (output tokens ÷ 1,000,000 × $10.00).

Benchmarks

BenchmarkValueSourceAs of
Epoch Capabilities Index (ECI) 156.7 epoch 2026-06-30
Epoch Mock AIME accuracy 94.7% epoch 2026-06-30
Epoch FrontierMath (T1–3) accuracy 65.6% epoch 2026-06-30
Arena text rating 1462 arena 2026-10-28
Arena coding rating (human preference votes, not task accuracy) 1520 arena 2026-10-28
Arena math rating 1475 arena 2026-10-28
Arena WebDev rating 1540 arena 2026-10-28

LiveBench

Shown on this model page only — LiveBench data never appears in any leaderboard, comparison table or structured data on this site.

LiveBench metricValueAs of
LiveBench Global Average76.02026-06-25
LiveBench Reasoning88.72026-06-25
LiveBench Coding80.72026-06-25
LiveBench Agentic Coding59.42026-06-25
LiveBench Mathematics92.92026-06-25
LiveBench Data Analysis71.72026-06-25
LiveBench Language75.02026-06-25
LiveBench Instruction Following63.92026-06-25

LiveBench leaderboard (livebench.ai, github.com/LiveBench/new-livebench), CC BY-SA 4.0 — livebench.ai · github.com/LiveBench/new-livebench · CC BY-SA 4.0

Similar ECI, lower price

ModelECIBlended $/1M
GLM-5.3-Flash153.6$0.1942
Claude Haiku 5.5160.2$0.20
GPT-6 Luna156.7$0.20
DeepSeek V4.1 Flash 1017159.3$0.2625
GPT-5.6 Luna156.8$0.45

More from Anthropic

ModelReleasedBlended $/1M
Claude Haiku 5.52026-10-07$0.20
Claude Sonnet 5.52026-09-28$4.00
Claude Opus 5.52026-09-22$8.00
Claude Mythos 5.12026-09-01$20.00
Claude Fable 5.12026-09-01$20.00
Claude Opus 52026-07-24$10.00
Claude Mythos 52026-06-09$20.00
Claude Fable 52026-06-09$20.00

Count tokens & estimate cost for Claude Sonnet 5 See Claude Sonnet 5 on the leaderboard

Prices: Anthropic's official list price as recorded by models.dev; benchmarks: see sources below; last synced 2026-11-06.

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FAQ

Who develops Claude Sonnet 5?

Claude Sonnet 5 is developed by Anthropic, released 2026-06-30.

How much does Claude Sonnet 5 cost per million tokens?

Claude Sonnet 5 costs $2.00 per 1M input tokens and $10.00 per 1M output tokens ($4.00 blended), per Anthropic's official list price as recorded by models.dev.

What is the Claude Sonnet 5 API price?

The Claude Sonnet 5 API price is $2.00 per 1M input tokens and $10.00 per 1M output tokens ($4.00 per 1M blended).

How much does Claude Sonnet 5 cost for a typical request?

A short chat reply (500 in / 300 out tokens) costs about 0.4¢ on Claude Sonnet 5, at $2.00/1M input and $10.00/1M output.

Is Claude Sonnet 5 free?

Claude Sonnet 5's official API list price is $2.00 per 1M input tokens and $10.00 per 1M output tokens. This site tracks list prices only, not free tiers or trial credits — check Anthropic's site for those.

How does Claude Sonnet 5 rank on benchmarks?

Claude Sonnet 5 scores 156.7 on the Epoch Capabilities Index (ECI), ranking #30 of 107 models we track with a published ECI score.

Is there a cheaper model with a similar ECI to Claude Sonnet 5?

Yes — GLM-5.3-Flash scores a similar ECI (153.6) at $0.1942/1M blended, versus $4.00/1M for Claude Sonnet 5.

Where does this data come from?

Pricing for Claude Sonnet 5 comes from models.dev and LiteLLM (open MIT-licensed catalogs); benchmark scores come from Epoch AI and LMArena (open CC BY 4.0 licenses); LiveBench scores (below) are CC BY-SA 4.0 — see /data-sources/. Last synced 2026-11-06.