Ideal für: AI Agents

Best LLM for AI Agents

Ranked on multi-step reasoning, tool-use reliability, and long-horizon stability. Agentic workloads amplify small accuracy gaps.

Aktualisiert April 2026. Top 3 diesen Monat: R1 0528, Qwen3.5 Plus 2026-02-15, DeepSeek V3.

Podium

This month’s top three.

  • 1
    R1 0528
    DeepSeek
    Input / 1M
    $0.50
    Output / 1M
    $2.15
    Context
    163,840
    Model page
  • 2
    Qwen3.5 Plus 2026-02-15
    Qwen
    Input / 1M
    $0.26
    Output / 1M
    $1.56
    Context
    1,000,000
    Model page
  • 3
    DeepSeek V3
    DeepSeek
    Input / 1M
    $0.32
    Output / 1M
    $0.89
    Context
    163,840
    Model page

So werten wir

Weights tuned for ai agents.

Agents chain dozens of tool calls per run. Even a 95%-reliable tool-use model compounds down to near-zero after 20 steps, so the gap between the top model and the runner-up matters a lot. We weight SWE-Bench Verified heavily because it is the best proxy for long-horizon agentic success, then reasoning benchmarks, then price.

Our full methodology is published on the Methodik-Seite.

Säulen und Gewichte:

  • SWE-Bench Verified40%
  • AgentBench30%
  • MMLU15%
  • price15%

Full ranking

Top-Modelle

RangModellAnbieterInput $/1MOutput $/1MKontext
1R1 0528DeepSeek$0.50$2.15163,840
2Qwen3.5 Plus 2026-02-15Qwen$0.26$1.561,000,000
3DeepSeek V3DeepSeek$0.32$0.89163,840
4Qwen3.5 397B A17BQwen$0.39$2.34262,144
5Hunyuan A13B InstructTencent$0.14$0.57131,072
6MiniMax M2.1MiniMax$0.29$0.95196,608
7Trinity Large PreviewArcee AI$0.00$0.00131,000
8GPT-4o (2024-11-20)OpenAI$2.50$10.00128,000
9MiniMax-01MiniMax$0.20$1.101,000,192
10Claude Sonnet 4.5Anthropic$3.00$15.001,000,000

Field notes

Tipps für ai agents

  • 01

    Plan for retries. Instrument every tool call with structured logging and a budget ceiling.

  • 02

    Prefer models with native structured-output mode to avoid JSON-fixup loops.

  • 03

    Cache system prompts aggressively — agentic flows repeat the same preamble many times.

FAQ

Häufige Fragen

The questions teams ask before picking a model for ai agents.

Get instant answers from our AI agent

As of April 2026, our weighted top 3 are R1 0528, Qwen3.5 Plus 2026-02-15, DeepSeek V3.
A lot. A 2% per-step improvement can double end-to-end reliability on a 20-step task. Prefer the top-tier model for agent loops and a cheaper model for one-shot tasks.
Open-weight models are catching up on tool use but still trail the frontier for long-horizon agents. Evaluate on your actual task before committing.