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    tau2-bench (Telecom)

    🏆 Leaderboard

    As of August 20, 2026, Claude Opus 4.6 is #1 for tau2-bench (Telecom) at 99.3%. Ranked by the tau2-bench (Telecom) score 31 models in this index have a published tau2-bench (Telecom) score. tau2-bench (Telecom) leaderboard with live API prices. tau2-bench Telecom — tests AI agents on realistic telecom customer service interactions.

    Updated August 20, 2026282 models33 providers
    LongCat-Flash-Thinking-2601OSS
    Meituan · Open Source
    		99.3%$1.50
    Claude Opus 4.6
    Anthropic · Proprietary
    		99.3%$30.00
    GPT-5.2
    OpenAI · Proprietary
    		98.7%$15.75
    Claude Opus 4.5
    Anthropic · Proprietary
    		98.2%$30.00
    GPT-5.5
    OpenAI · Proprietary
    		98%$35.00
    Claude Sonnet 4.6
    Anthropic · Proprietary
    		97.9%$18.00
    GPT-5
    OpenAI · Proprietary
    		96.7%$11.25
    GPT-5.1 Thinking
    OpenAI · Proprietary
    		95.6%$11.25
    GPT-5.1 Instant
    OpenAI · Proprietary
    		95.6%$11.25
    GPT-5.1
    OpenAI · Proprietary
    		95.6%$11.25
    GPT-5.4 mini
    OpenAI · Proprietary
    		93.4%$5.25
    GPT-5.4 nano
    OpenAI · Proprietary
    		92.5%$1.45
    MiniMax M2.1OSS
    MiniMax · Open Source
    		87%$1.50
    MiniMax M2OSS
    MiniMax · Open Source
    		87%$1.50
    Command A+OSS
    Cohere · Open Source
    		85%$12.50
    LongCat-Flash-ThinkingOSS
    Meituan · Open Source
    		83.1%$1.50
    Claude Haiku 4.5
    Anthropic · Proprietary
    		83%$6.00
    Nova 2 Lite
    Amazon · Proprietary
    		76%$2.80
    LongCat-Flash-ChatOSS
    Meituan · Open Source
    		73.7%$1.50
    LongCat-Flash-LiteOSS
    Meituan · Open Source
    		72.8%$0.50
    GPT-5.4
    OpenAI · Proprietary
    		71%$17.50
    GPT-5.3 Codex
    OpenAI · Proprietary
    		69.6%$15.75
    Kimi K2-Instruct-0905OSS
    Moonshot AI · Open Source · via OpenRouter
    		65.8%$3.10
    Kimi K2 InstructOSS
    Moonshot AI · Open Source
    		65.8%$1.00
    Nemotron 3 Super (120B A12B)OSS
    NVIDIA · Open Source · via OpenRouter
    		64.4%$0.54
    o3
    OpenAI · Proprietary
    		58.2%$10.00
    Qwen3-235B-A22B-Thinking-2507OSS
    Qwen · Open Source
    		45.6%$3.30
    Qwen3-Next-80B-A3B-ThinkingOSS
    Qwen · Open Source
    		43.9%$1.65
    Nemotron 3 Nano (30B A3B)OSS
    NVIDIA · Open Source
    		42.2%$0.30
    GPT-4o
    OpenAI · Proprietary
    		23.5%$12.50
    Qwen3-Next-80B-A3B-InstructOSS
    Qwen · Open Source
    		13.2%$1.65
    ChatGPT-4o Latest
    OpenAI · Proprietary
    		—$12.50
    Claude 3 Haiku
    Anthropic · Proprietary
    		—$1.50
    Claude 3 Opus
    Anthropic · Proprietary
    		—$90.00
    Claude 3 Sonnet
    Anthropic · Proprietary
    		—$18.00
    Claude 3.5 Haiku
    Anthropic · Proprietary
    		—$4.80
    Claude 3.5 Sonnet
    Anthropic · Proprietary
    		—$18.00
    Claude 3.5 Sonnet
    Anthropic · Proprietary
    		—$18.00
    Claude 3.7 Sonnet
    Anthropic · Proprietary
    		—$18.00
    Claude Fable 5
    Anthropic · Proprietary
    		—$60.00
    Claude Mythos 5
    Anthropic · Proprietary
    		—$60.00
    Claude Mythos Preview
    Anthropic · Proprietary
    		—$60.00
    Claude Opus 4
    Anthropic · Proprietary
    		—$90.00
    Claude Opus 4.1
    Anthropic · Proprietary
    		—$90.00
    Claude Opus 4.7
    Anthropic · Proprietary
    		—$30.00
    Claude Opus 4.8
    Anthropic · Proprietary
    		—$30.00
    Claude Opus 5
    Anthropic · Proprietary
    		—$30.00
    Claude Sonnet 4
    Anthropic · Proprietary
    		—$18.00
    Claude Sonnet 4.5
    Anthropic · Proprietary
    		—$18.00
    Claude Sonnet 5
    Anthropic · Proprietary
    		—$12.00
    Showing 1–50 of 282 models

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    The index

    All Large Language Models

    282 models across 33 providers. Search or jump to a lab — every model page stays linked here.

    OpenAI51Anthropic22Google25Cursor2xAI15DeepSeek16MiniMax6Qwen38AI21 Labs2Amazon5Baidu1ByteDance2Cohere3IBM1Inception1inclusionAI1LG AI Research1Meituan4Meta12Microsoft5Mistral23Moonshot AI9Nous Research1NVIDIA5Poolside2Sakana AI1StepFun1Tencent1Thinking Machines1Unisound1Upstage1Xiaomi3Z AI20

    Baidu

    1 models
    ERNIE 4.5

    Inception

    1 models
    Mercury 2

    inclusionAI

    1 models
    Ling-3.0-flash

    LG AI Research

    1 models
    K-EXAONE-236B-A23B

    Nous Research

    1 models
    Hermes 3 70B

    Sakana AI

    1 models
    Sakana Namazu

    StepFun

    1 models
    Step-3.5-Flash

    Tencent

    1 models
    Hy3

    Thinking Machines

    1 models
    Inkling-Small

    Unisound

    1 models
    U2

    Upstage

    1 models
    Solar Pro 4

    Which model leads tau2-bench (Telecom) right now?

    As of August 20, 2026, Claude Opus 4.6 by Anthropic is #1 for tau2-bench (Telecom) at 99.3%. Ranked by the tau2-bench (Telecom) score This board also tracks tau2-bench (Telecom). Next on the same board: LongCat-Flash-Thinking-2601 and GPT-5.2. This tau2-bench (telecom) leaderboard ranks models by tau2-bench (Telecom). Scores come from public evals. Prices are the live API rates in the table above.

    Sources: OpenAI API pricing (https://developers.openai.com/api/docs/pricing); Anthropic Claude API pricing (https://platform.claude.com/docs/en/about-claude/pricing); Gemini API pricing (https://ai.google.dev/gemini-api/docs/pricing)

    Top 8 for tau2-bench (telecom). Ranked by the tau2-bench (Telecom) score Input and output are dollars per million tokens.
    RankModeltau2-bench (Telecom)Input /MOutput /M
    1Claude Opus 4.699.3%$5.00$25.00
    2LongCat-Flash-Thinking-260199.3%$0.30$1.20
    3GPT-5.298.7%$1.75$14.00
    4Claude Opus 4.598.2%$5.00$25.00
    5GPT-5.598%$5.00$30.00
    6Claude Sonnet 4.697.9%$3.00$15.00
    7GPT-596.7%$1.25$10.00
    8GPT-5.195.6%$1.25$10.00

    Related LLM leaderboards

    LLM LeaderboardCodingMathAgenticReasoningWritingScienceFinanceLong ContextVisionOpen Source

    Individual benchmark pages

    Rank one eval at a time. All LLM benchmarks.

    HLESWE BenchHumanity's Last Exam (No Tools)Humanity's Last Exam (With Tools)Terminal-Bench 2.0Terminal-BenchTerminal-Bench 2.1Terminal-Bench 2Terminal-Bench 3.0ARC-AGI-1 Verified

    tau2-bench (Telecom) FAQ

    Who ranks #1 on the tau2-bench (Telecom) leaderboard?

    As of August 20, 2026, Claude Opus 4.6 by Anthropic ranks #1 on tau2-bench (Telecom) at 99.3%. API pricing is $5.00/M input and $25.00/M output.

    What are the top models on tau2-bench (Telecom)?

    The current tau2-bench (Telecom) ranking as of August 20, 2026 is 1. Claude Opus 4.6 at 99.3%; 2. LongCat-Flash-Thinking-2601 at 99.3%; 3. GPT-5.2 at 98.7%.

    Which tau2-bench (telecom) model is the cheapest?

    Nemotron 3 Nano (30B A3B) is the cheapest scored model on this tau2-bench (telecom) leaderboard at $0.06/M input and $0.24/M output ($0.30 blended). Claude Opus 4.6 still leads tau2-bench (Telecom) at 99.3%.

    Should I always pick the #1 tau2-bench (Telecom) model?

    Not automatically. Claude Opus 4.6 leads tau2-bench (Telecom), but a cheaper scored model can be the better production choice if the quality gap is small. Use the table to weigh tau2-bench (Telecom) against input/output price, context window, and related evals.

    How often is the tau2-bench (Telecom) leaderboard updated?

    Scores and API prices on this page are refreshed from published evals and provider rates. The snapshot is labeled August 20, 2026. Treat it as a current index, not a one-off blog post.

    What is tau2-bench (Telecom)?

    tau2-bench Telecom — tests AI agents on realistic telecom customer service interactions. This page ranks models that have published a tau2-bench (Telecom) score, with live API token prices on the same row.

    Where is the tau2-bench (Telecom) leaderboard?

    This page is the tau2-bench (Telecom) leaderboard. Models are sorted by tau2-bench (Telecom), with input and output token prices on the same row so you can weigh score against cost. Official boards often omit price; that comparison is the point of this index.

    How is this tau2-bench (Telecom) ranking different from the official board?

    Official eval pages own the methodology. This page keeps the published tau2-bench (Telecom) score next to live API $/M so you can pick a production SKU, not only a trophy number.