Virtual poolant:best

ANT Best

Quality first — only models scoring 80 or above.

Try in Playground
Quality floor: 80/100 or above

How this pool routes

ant:best weights quality at the maximum and enforces a floor of 80, accepting higher latency and cost. Use it where the answer matters more than the bill.

Best For

Complex analysisLong-form writingHigh-stakes output

Where requests went

Live routing over the last 30 days

Requests

181

Success rate

50.83%

Avg latency

565ms

ant:bestUnknown49.2% · 89
openai/gpt-4.1-nanoSemantic-cache34.8% · 63
openai/o3-miniSemantic-cache16% · 29

Models in this pool

73 models across 11 providers currently qualify. Per-request limits (context size, cost caps, your model allowlist) narrow this further at routing time.

o1-pro

OpenAI200K👁🧠Q:97

o1-pro

OpenAI200K👁🧠Q:97

Claude Sonnet 5

Anthropic1M👁🧠Q:96

o3

OpenAI200K👁🧠Q:96

o3

OpenAI200K👁🧠Q:96

Anthropic: Claude Opus 4.7 (batch)

OpenRouter1M👁Q:95

Anthropic: Claude Opus 4.1

OpenRouter200K👁Q:95

Anthropic: Claude Opus 4.7

OpenRouter1M👁Q:95

Anthropic: Claude Opus 4.8 (batch)

OpenRouter1M👁Q:95

Anthropic: Claude Opus Latest

OpenRouter1M👁Q:95

o1

OpenAI200K👁🧠Q:95

Anthropic: Claude Opus 5.5 (batch)

OpenRouter1M👁Q:95

Anthropic: Claude Opus 4.8

OpenRouter1M👁Q:95

OpenAI: o4 Mini (batch)

OpenRouter200K👁🧠Q:95

Anthropic: Claude Opus 4.5 (batch)

OpenRouter200K👁Q:95

Anthropic: Claude Opus 4.1 (batch)

OpenRouter200K👁Q:95

Anthropic: Claude Opus 5 (batch)

OpenRouter1M👁Q:95

Anthropic: Claude Opus 5

OpenRouter1M👁Q:95

OpenAI: o4 Mini High

OpenRouter200K👁🧠Q:95

Anthropic: Claude Opus 4.6 (batch)

OpenRouter1M👁Q:95

GPT-5

OpenAI400K👁🧠Q:95

Anthropic: Claude Opus 4.5

OpenRouter200K👁Q:95

Anthropic: Claude Opus 5.5

OpenRouter1M👁Q:95

OpenAI: o3 Mini High

OpenRouter200K🧠Q:95

Showing the 24 highest-scoring of 73.

Quick Start

from openai import OpenAI

client = OpenAI(
    base_url="https://api.antbase.ai/v1",
    api_key="YOUR_ANT_API_KEY",
)

response = client.chat.completions.create(
    model="ant:best",
    messages=[{"role": "user", "content": "Hello!"}]
)
print(response.choices[0].message.content)

Routing weights

Speed20/100
Quality100/100
Cost20/100

Selection criteria

Quality floorrequired80/100 or above
Speed weight20/100
Quality weight100/100
Cost weight20/100
Model IDant:best

Other pools

Every virtual pool accepts the same request shape — swap the model id to change the routing policy.

Browse all virtual models →