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claude-sonnet-4-5-20250929 vs claude-haiku-4-5-20251001

Pricing, Performance & Features Comparison

Price unit:

claude-sonnet-4-5-20250929

Authoranthropic

Context Length200K

Reasoning

-

Providers1

ReleasedSep 2025

Knowledge Cutoff-

License-

Our best model for complex agents and coding, with the highest intelligence across most tasks.

Input$3

Output$15

Latency (p50)2.5s

Output Limit64K

Function Calling

JSON Mode

-

Input-

Output-

in$3out$15cache$0.3write$3.8

Latency (24h)

Success Rate (24h)

claude-haiku-4-5-20251001

Authoranthropic

Context Length200K

Reasoning

-

Providers1

ReleasedOct 2025

Knowledge CutoffFeb 2025

License-

Our fastest model with near-frontier intelligence.

Input$1

Output$5

Latency (p50)995ms

Output Limit64K

Function Calling

JSON Mode

-

Input-

Output-

in$1out$5--

Latency (24h)

Success Rate (24h)