Anthropic (Claude) API Pricing

19 Anthropic models with published API pricing, $0.20–$20.00 per 1M tokens blended.

$0.20
Cheapest — Claude Haiku 5.5
801.1
Best value — Claude Haiku 5.5 (ECI per $1/1M)
168.4
Highest ECI — Claude Opus 5.5

Claude token pricing

Price per 1M input and output tokens for Anthropic models with a published API price, sortable below.

Anthropic model prices

Model ECI Arena coding In $/1M Out $/1M Blended
Claude Fable 5 164.2 1550 10.00 50.00 20.00
Claude Fable 5.1 166.9 1537 10.00 50.00 20.00
Claude Haiku 4.5 — 1482 1.00 5.00 2.00
Claude Haiku 4.5 (latest) 142.8 — 1.00 5.00 2.00
Claude Haiku 5.5 160.2 1489 0.10 0.50 0.20
Claude Mythos 5 — — 10.00 50.00 20.00
Claude Mythos 5.1 — — 10.00 50.00 20.00
Claude Opus 4.5 — 1522 5.00 25.00 10.00
Claude Opus 4.5 (latest) 151.8 — 5.00 25.00 10.00
Claude Opus 4.6 156.3 1546 5.00 25.00 10.00
Claude Opus 4.7 157.6 1546 5.00 25.00 10.00
Claude Opus 4.8 159.9 1529 5.00 25.00 10.00
Claude Opus 5 164.4 1534 5.00 25.00 10.00
Claude Opus 5.5 168.4 1551 4.00 20.00 8.00
Claude Sonnet 4.5 — 1512 3.00 15.00 6.00
Claude Sonnet 4.5 (latest) 147.6 — 3.00 15.00 6.00
Claude Sonnet 4.6 152.9 1528 3.00 15.00 6.00
Claude Sonnet 5 156.7 1520 2.00 10.00 4.00
Claude Sonnet 5.5 166.2 1529 2.00 10.00 4.00

Same workload, different Anthropic models

WorkloadClaude Opus 5.5Claude Fable 5.1Claude Sonnet 5.5Claude Opus 5Claude Fable 5Claude Haiku 5.5Claude Opus 4.8Claude Opus 4.7
Short chat reply
500 in / 300 out
0.8¢$0.02000.4¢$0.0100$0.02000.02¢$0.0100$0.0100
RAG query
4,000 in / 500 out
$0.0260$0.0650$0.0130$0.0325$0.06500.065¢$0.0325$0.0325
Long document summary
50,000 in / 1,000 out
$0.2200$0.5500$0.1100$0.2750$0.55000.55¢$0.2750$0.2750

Also tracked but without published pricing: Claude Haiku 3, Claude Haiku 3.5, Claude Opus 4, Claude Opus 4 (latest), Claude Opus 4.1, Claude Opus 4.1 (latest), Claude Sonnet 3.5 v2, Claude Sonnet 3.7, Claude Sonnet 4, Claude Sonnet 4 (latest).

Compare Anthropic with other developers

FAQ

How many Anthropic models have published API pricing?

19 Anthropic models currently have published pricing, ranging from $0.20 to $20.00 per 1M tokens blended.

What is the cheapest Anthropic model?

Claude Haiku 5.5, at $0.20/1M blended tokens.

Which Anthropic model offers the best value?

Claude Haiku 5.5, delivering 801.1 ECI points per $1/1M blended tokens — the highest of any priced Anthropic model.

Which Anthropic model has the highest ECI?

Claude Opus 5.5, scoring 168.4 on the Epoch Capabilities Index.

Where does this pricing data come from?

models.dev and LiteLLM (open MIT-licensed catalogs), synced daily. See the full Anthropic lineup below, including any unpriced/unreleased models.