Business

Best agent for customer support

Resolving tickets, answering customers and handling account actions.

Leader

Clear lead

Claude Sonnet 5.5

Index

Lead

+3.0

% ahead

3.3%

over GPT-6.1 Sol.

Full ranking

Task index, 0 to 100. Bars are scaled to the field, so small gaps look small.

5 entries

1
Claude Sonnet 5.5Anthropic · Model
95
Reliable tool use at scale.
2
GPT-6.1 SolOpenAI · Model
−3.092
Warmest customer tone.
3
Intercom FinIntercom · Platform
−6.089
Turnkey support agent.
4
SierraSierra · Platform
−7.088
Enterprise conversational agents.
5
Claude Haiku 5.5Anthropic · Model
−10.085
Cheapest for triage and routing.

Key takeaways

1AI agents now resolve a large share of routine tickets end to end.
2Speed and cost matter: Sonnet 5.5 and Sol lead on balance.
3Design clean handoffs to humans.

Recommended setup

A platform like Fin or Sierra, or a custom agent on Sonnet 5.5 / Sol with order and account tools, strict policies and human escalation.

Prompts that work

Support agent policy

You are the support assistant for {{company}}. Resolve issues using the tools provided. Policies: {{refund_rules}}. Never promise what policy doesn't allow. Escalate to a human when: the customer asks, sentiment is very negative, or the issue involves {{sensitive_topics}}. Keep replies under 120 words.

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