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Anthropic: Claude Haiku 5.5

Source description (English)

Claude Haiku 5.5 is Anthropic's small, fast model for high-volume, cost-sensitive work such as summarization, subagents, and browser use. It succeeds Claude Haiku 4.5 with stronger coding, computer use, and...

View source on OpenRouter
Overview

Model specifications

Context
1,000,000 tokens
Maximum output
128,000 tokens
Architecture
text+image+file->text
Tokenizer
Claude
Knowledge cutoff
Not provided
Moderated
Yes
OPENROUTER

Complete pricing

Synchronized OpenRouter rates. Token prices are shown per one million tokens.

Input
$0.1
per 1M tokens
  • ≤100K$0.1
  • >100K$0.5
Output
$0.5
per 1M tokens
  • ≤100K$0.5
  • >100K$2.5
Cache read
$0.01
per 1M tokens
  • ≤100K$0.01
  • >100K$0.05
Cache write
$0.125
per 1M tokens
  • ≤100K$0.125
  • >100K$0.625
Cache write (1h)
$0.2
per 1M tokens
  • ≤100K$0.2
  • >100K$1
API

Model configuration

Reasoning

Reasoning required
No
Default parameters
medium
Capabilities
max, xhigh, high, medium, low
API

Quick start

Set OPENROUTER_API_KEY locally. Python requires requests; JavaScript runs in Node.js. Keep the key on the server.

API documentation

curl --fail-with-body https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"anthropic/claude-haiku-5.5","messages":[{"role":"user","content":"Hello!"}]}'
Capabilities

Input → Output

Input
textimagefile
Output
text
Reasoning

No · max · xhigh · high · medium · low

API

Supported API parameters

include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatstopstructured_outputstool_choicetoolsverbosity
Available providers

10 providers

Checked: October 8, 2026

Live providers on OpenRouter

Provider availability, latency, throughput and routing can change continuously. Open the source page for current operational data.

OpenRouter

Google

Not provided
Context
1M
Maximum output
128K
Input
$0.1
Output
$0.5
Cache read
$0.01
Cache write
$0.125

Claude Platform on AWS

Not provided
Context
1M
Maximum output
128K
Input
$0.1
Output
$0.5
Cache read
$0.01
Cache write
$0.125

Azure

Not provided
Context
1M
Maximum output
128K
Input
$0.1
Output
$0.5
Cache read
$0.01
Cache write
$0.125

Anthropic

Not provided
Context
1M
Maximum output
128K
Input
$0.1
Output
$0.5
Cache read
$0.01
Cache write
$0.125

Amazon Bedrock

Not provided
Context
1M
Maximum output
128K
Input
$0.1
Output
$0.5
Cache read
$0.01
Cache write
$0.125

Google

Not provided
Context
1M
Maximum output
128K
Input
$0.11
Output
$0.55
Cache read
$0.011
Cache write
$0.1375

Google

Not provided
Context
1M
Maximum output
128K
Input
$0.11
Output
$0.55
Cache read
$0.011
Cache write
$0.1375

Azure

Not provided
Context
1M
Maximum output
128K
Input
$0.11
Output
$0.55
Cache read
$0.011
Cache write
$0.1375

Amazon Bedrock

Not provided
Context
1M
Maximum output
128K
Input
$0.11
Output
$0.55
Cache read
$0.011
Cache write
$0.1375

Amazon Bedrock

Not provided
Context
1M
Maximum output
128K
Input
$0.11
Output
$0.55
Cache read
$0.011
Cache write
$0.1375
anthropic

4 models

All models
anthropic logoanthropic

Anthropic: Claude Haiku 5.5 (batch)

Claude Haiku 5.5 is Anthropic's small, fast model for high-volume, cost-sensitive work such as summarization, subagents, and browser use. It succeeds Claude Haiku 4.5 with stronger coding, computer use, and...

Context
1M
Input
text · image · file
Output
text
Input: $0.05Output: $0.25per 1M tokens
View model details →
anthropic logoanthropic

Anthropic: Claude Sonnet 5.5

Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. It is especially strong at building features, fixing bugs, and producing...

Context
1M
Input
text · image · file
Output
text
Input: $2Output: $10per 1M tokens
View model details →
anthropic logoanthropic

Anthropic: Claude Sonnet 5.5 (batch)

Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. It is especially strong at building features, fixing bugs, and producing...

Context
1M
Input
text · image · file
Output
text
Input: $1Output: $5per 1M tokens
View model details →
anthropic logoanthropic

Anthropic: Claude Opus 5.5

Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It is particularly strong at multi-step changes in large codebases, code...

Context
1M
Input
text · image · file
Output
text
Input: $4Output: $20per 1M tokens
View model details →