Claude Haiku 4.5

anthropic/claude-haiku-4-5

fastest & most compact, great for quick tasks.

cmd --model claude-haiku-4-5
Intelligence index
23.7
Output speed
101.3 tok/s
Input
$1 /M
Output
$5 /M
Cache read
$0.10 /M
Agent-loop cost
$0.37 /M in
Context window
200K tokens
Released
October 15, 2025
Modalities
→

vs. the lineup

Claude Haiku 4.5 beside its stablemates and nearest rivals. The ◆ marks the best value in each column across every row shown.

pin a rival:
ModelIntelligenceCodingSpeedInput $/MOutput $/MBlended $/MContext
Claude Fable 559.9◆76.5◆60.2$10$50$201M◆
Claude Opus 4.855.774.365.9$5$25$101M◆
Claude Sonnet 553.471.582.1$2$10$41M◆
Claude Sonnet 4.647.26367.8$3$15$61M◆
Claude Haiku 4.5 ◆23.7—101.3$1$5$2200K
Claude Opus 5———$5$25$101M◆
DeepSeek V4 Propinned44.359.470.9$0.43$0.87$0.541M◆
DeepSeek V4 Flashpinned40.356.2122◆$0.14◆$0.28◆$0.18◆1M◆
Compare all 50 models →

coding performance

The Intelligence Index and its sub-scores, ranked against every scored model in the catalog. A metric that has not been measured for Claude Haiku 4.5 has been left empty.

IFBench
42
instruction following
Intelligence Index
23.7
#40 of 40 scored
Long-context reasoning
43.7
reasoning across a long context
SciCode
34.4
scientific coding
GPQA Diamond
64.6
graduate-level QA

usage calculator

How far a month of credits goes on Claude Haiku 4.5.

Input tokensfresh prompt
800
Output tokensmodel reply
180
Cache read tokensre-read context
50K
cost / request $0.0067 · in $1 · out $5 · cache $0.10 per M
fresh input 12%output 13%cache reads 75%
Requests / 30 days
2.2K
$15 credits ÷ $0.0067 per request
~448 quick fixes~90 bug fixes~15 feature PRs

what real work costs

Real coding tasks priced end to end on Claude Haiku 4.5, from a quick lookup to a full-repo agent run.

One agent task
$0.12
180K in at 75% cache hit, 12K out
What you pay
$0.62 /M
all-in across every token that task touched
Sticker input
$1 /M
cache reads bill at $0.10 /M instead
TaskTokens in · outClaude Haiku 4.5MiniMax M3
Quick lookup / one-liner8K · 1K$0.0065$0.0019
Review a 500-line PR60K · 4K$0.04$0.01
Fix a bug (agent loop)180K · 12K$0.12$0.04
Refactor a module320K · 20K$0.21$0.06
Full-repo agent run900K · 45K$0.49$0.16

frequently asked

What is Claude Haiku 4.5 best for?+
Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models. Matching Claude Sonnet 4’s performance across reasoning, coding, and computer-use tasks, Haiku 4.5 brings frontier-level capability to real-time and high-volume applications. It introduces extended thinking to the Haiku line; enabling controllable reasoning depth, summarized or interleaved thought output, and tool-assisted workflows with full support for coding, bash, web search, and computer-use tools. Scoring >73% on SWE-bench Verified, Haiku 4.5 ranks among the world’s best coding models while maintaining exceptional responsiveness for sub-agents, parallelized execution, and scaled deployment.
How much does Claude Haiku 4.5 cost?+
$1/M input and $5/M output, cache reads $0.10/M. In an agent loop most input is cache-read, so the effective input rate is about $0.37/M.
Which plan do I need?+
Available on Pro and above.
How do I switch to it?+
Run cmd --model claude-haiku-4-5, or type /model in a session and pick it. You can switch mid-session without losing context.
Claude Sonnet 5→
best combo of speed & intelligence (recommended) · $2/$10 per M
Claude Sonnet 4.6→
prev Sonnet, still fast & capable · $3/$15 per M
All supported models→
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