Claude Opus 4.8 vs Claude Sonnet 4.6
Claude Opus 4.8 vs Claude Sonnet 4.6: Side-by-side API pricing and specs — call both with one OpenAI-compatible key on GetModel.
Claude Opus 4.8
Anthropic · Text
Claude Opus 4.8 is Anthropic's flagship model for complex reasoning, agentic workflows and coding. On getmodel it runs through a stable Claude Code Max pool or a low-cost Kiro pool, over both Anthropic-native and OpenAI-compatible endpoints.
View details → Claude Sonnet 4.6
Anthropic · Text
Claude Sonnet 4.6 from Anthropic balances capability and speed for everyday coding and general tasks. On getmodel it runs through a stable Claude Code Max pool or a low-cost Kiro pool, over both Anthropic-native and OpenAI-compatible endpoints.
View details →Pricing comparison
| Claude Opus 4.8 | Claude Sonnet 4.6 | |
|---|---|---|
| Input / 1M tokens | $0.442 | $0.265 Cheaper |
| Output / 1M tokens | $2.21 | $1.33 Cheaper |
Specifications
| Provider | Anthropic | Anthropic |
| Type | Text | Text |
| Endpoints | anthropic / openai | anthropic / openai |
How to call
One API key calls both models — just change the "model" field.
from openai import OpenAI
client = OpenAI(base_url="https://getmodel.ai/v1", api_key="$GETMODEL_API_KEY")
# Claude Opus 4.8
client.chat.completions.create(model="claude-opus-4-8", messages=[{"role":"user","content":"Hi"}])
# Claude Sonnet 4.6 (same key, just change "model")
client.chat.completions.create(model="claude-sonnet-4-6", messages=[{"role":"user","content":"Hi"}])