Top 11AI made for AI

The 11 best ai infrastructure · observability under $250/mo

The best provider in the Top 11 LangSmith vs Arize AI vs Datadog: 11 Best LLM Observability Platforms 2026 Ranked priced under $250/mo is Helicone.

Why this answer

Filtered to entries whose published ceiling price (max published price band) is at or below $250/mo. Sorted cheapest first.

Showing all 4 matches. Top 11 publishes whatever the data supports — we don’t pad lists. See the full ranked LangSmith vs Arize AI vs Datadog: 11 Best LLM Observability Platforms 2026 Ranked.

  1. #1Helicone(rank #6 in LangSmith vs Arize AI vs Datadog: 11 Best LLM Observability Platforms 2026 Ranked)

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    A simple, elegant API proxy for LLM logging, caching, and analytics with near-zero setup friction.

    Full Helicone review · Compare: Helicone vs New Relic · Alternatives

  2. #2New Relic(rank #7 in LangSmith vs Arize AI vs Datadog: 11 Best LLM Observability Platforms 2026 Ranked)

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    A robust, integrated AI monitoring solution for the extensive New Relic enterprise customer base.

    Full New Relic review · Alternatives

  3. #3OpenLLMetry(rank #11 in LangSmith vs Arize AI vs Datadog: 11 Best LLM Observability Platforms 2026 Ranked)

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    A vendor-agnostic, open-source standard for adding LLM signals to OpenTelemetry traces.

    Full OpenLLMetry review · Alternatives

  4. #4Datadog(rank #3 in LangSmith vs Arize AI vs Datadog: 11 Best LLM Observability Platforms 2026 Ranked)

    $20+/mo

    A strong, integrated LLM observability solution for companies already committed to the Datadog platform.

    Full Datadog review · Alternatives

Methodology: /methodology · No paid placement ever · Verified .