Claude Opus 5 5 API

Anthropic·1M contextChatReasoningTool callingVision

Long-Horizon Programming and Knowledge Work

Overview

About this model

Anthropic A model for long-duration agentic programming and knowledge work, supporting image understanding, tool calling, and adaptive thinking. 100 10K Token context, up to 12.8 10K Token output; the full context is billed at the standard rate, with no long-context premium. Adaptive thinking is always on, and forced tool calling is not supported.

Capabilities

Capability matrix

TextSupported

VisionSupported

Audio—

ToolsSupported

JSONSupported

ReasoningSupported

Pricing and groups

Routes and pricing

Claude-aws12% of baseDisrupted

High-quality caching, low latency, high stability, suitable for daily use.

Input

$0.48 / 1M

Output

$2.4 / 1M

Cache read

$0.024 / 1M

Cache write

$0.6 / 1M

Recent availabilityPast 24 hours · Active probes89.2%

24h ago16h ago8h agoNow

Claude-MAX (dedicated to cc, only connects to cli)29% of baseCollecting data

Claude Official Max full-power version, for use only with Claude Code (CLI); if you need to use Claude Desktop, you must switch to another group. Supports Fable 5.

Input

$1.16 / 1M

Output

$5.8 / 1M

Cache read

$0.058 / 1M

Cache write

$1.45 / 1M

Recent availabilityPast 24 hours · Active probes—

24h ago16h ago8h agoNow

Claude Official Max Line31% of baseOperational

Official full-power line, supports all scenarios, prioritizing stability and performance.

Input

$1.24 / 1M

Output

$6.2 / 1M

Cache read

$0.062 / 1M

Cache write

$1.55 / 1M

Recent availabilityPast 24 hours · Active probes99.5%

24h ago16h ago8h agoNow

Prices in USD per 1M tokens. Rates follow provider adjustments; live prices in Model Explorer as the reference.

Snapshot: 2026-10-07 23:09. Availability reflects active probes over the past 24 hours; performance reflects actual calls.

Compare

Group comparison

GroupInput/output priceSpeedStability

Claude-aws$0.48 / $2.4261.3 t/s89.2%

Claude-MAX (dedicated to cc, only connects to cli)$1.16 / $5.8217.4 t/s—

Claude Official Max Line$1.24 / $6.2107.4 t/s99.5%

API

Integration example

All models share one OpenAI-compatible endpoint. To switch models, change the model field. One key accesses every model.

Python · OpenAI SDK

# pip install openai
from openai import OpenAI

client = OpenAI(
    base_url="https://api.yomiapi.com/v1",
    api_key="sk-your-yomi-key",
)

resp = client.chat.completions.create(
    model="claude-opus-5-5",
    messages=[{"role": "user", "content": "Hello"}],
)
print(resp.choices[0].message.content)

curl · OpenAI compatible

curl https://api.yomiapi.com/v1/chat/completions \
  -H "Authorization: Bearer sk-your-yomi-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-opus-5-5",
    "messages": [{"role": "user", "content": "Hello"}]
  }'

curl · Native Anthropic protocol

curl https://api.yomiapi.com/v1/messages \
  -H "x-api-key: sk-your-yomi-key" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-opus-5-5",
    "max_tokens": 1024,
    "messages": [{"role": "user", "content": "Hello"}]
  }'

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