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Kiro

Claude Opus 5.5 Kiro

Save 85%

anthropic/claude-opus-5-5-kiro

Call claude-opus-5-5:kiro. Dedicated Kiro route with streaming and automatic tool calls. count_tokens and forced tool choice are unavailable; use auto for tools.

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1Configure input
0 / 20,000
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2Live result

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Context window
1M
Max output
128K
Input modalities
TextImage
Output modalities
Text
Capabilities
Vision · Reasoning · Tool calling · Coding · Prompt cache · Paid cache writes
Upstream release
2026-09-22
RouteMux name
anthropic/claude-opus-5-5-kiro

Claude Opus 5.5 Kiro API pricing

Prices verified 2026-11-05

InputOfficial $4 / M tokens
$0.6/ M tokensSave 85%
OutputOfficial $20 / M tokens
$3/ M tokensSave 85%

Cache read $0.03/M · Cache write $0.75/M

Estimate cost

Estimated cost$0.009

Key capabilities

VisionReasoningTool callingCodingPrompt cachePaid cache writes

Limited time10% extra Credits on your first top-up — up to 200 bonus Credits

Applies to your first top-up within 72 hours of signing up. Minimum $20, once per account.

Sign up and claimNo subscription. Pay for what you use.

Interface and protocols

Anthropic MessagesStreaming

Use any of these IDs to call this model via the API.

RouteMux nameanthropic/claude-opus-5-5-kiro

Replace the ROUTEMUX_KEY placeholder with your API key. Create one →

from anthropic import Anthropic

client = Anthropic(
    base_url="https://api.routemux.com/anthropic",
    api_key="<ROUTEMUX_KEY>",
)

message = client.messages.create(
    model="anthropic/claude-opus-5-5:kiro",
    max_tokens=1024,
    messages=[{"role": "user", "content": "What is the meaning of life?"}],
)
print(message.content[0].text)
base_url: https://api.routemux.com/anthropic

Performance (last 30 days)

Related models

Claude Opus 5.5 Kiro FAQ

›What is Claude Opus 5.5 Kiro?

Call claude-opus-5-5:kiro. Dedicated Kiro route with streaming and automatic tool calls. count_tokens and forced tool choice are unavailable; use auto for tools.

›How large is the context window of Claude Opus 5.5 Kiro?

Claude Opus 5.5 Kiro supports a context window of up to 1M tokens, with up to 128K output tokens per request.

›How much does the Claude Opus 5.5 Kiro API cost?

Through RouteMux, Claude Opus 5.5 Kiro costs $0.6 for input and $3 for output (USD per 1M tokens), below the official list price.

›How do I call Claude Opus 5.5 Kiro via API?

Claude Opus 5.5 Kiro is OpenAI-compatible: point your base URL at RouteMux and set the model field to anthropic/claude-opus-5-5-kiro — no code changes needed.

›Which input and output modalities does Claude Opus 5.5 Kiro support?

Claude Opus 5.5 Kiro accepts text, image as input and produces text as output.

›When was Claude Opus 5.5 Kiro released?

Claude Opus 5.5 Kiro was released on September 22, 2026.

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