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Head-to-head · Llm Monitoring

W&B Weave vs Helicone

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score W&B Weave #5 in Llm Monitoring 8.7/10 Free plan · 30-day trial Free planFree trial✓ 2 of 3 features Visit W&B Weave
Helicone #8 in Llm Monitoring 8.4/10 Free plan · 7-day trial Free planFree trial✓ 2 of 3 features Visit Helicone

W&B Weave leads on 1 check, Helicone on 0, and 3 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreW&B Weave · 8.7/10
  • Lowest starting priceW&B Weave · $60/mo
  • Free planboth
  • Free trialboth

W&B Weave scores higher on our rubric for llm monitoring: 8.7 against 8.4 out of 10; our editors rank them #5 and #8.

W&B Weave is cheaper to start at $60/mo against $79/mo.

W&B Weave is the better fit for teams monitoring LLM apps and agent behavior. Helicone is the better fit for teams needing a model gateway with observability.

  • W&B Weave fits best

    Teams monitoring LLM apps and agent behavior

  • Helicone fits best

    Teams needing a model gateway with observability

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature W&B Weave 8.7/10 Visit ↗ Helicone 8.4/10 Visit ↗
At a glance
Editor score 8.7 8.4
Ranking #5 in Llm Monitoring #8 in Llm Monitoring
Best for Teams monitoring LLM apps and agent behavior Teams needing a model gateway with observability
Pricing model Free plan + paid Free plan + paid
Starting price $60/mo (best) $79/mo
Free plan ✓ ✓
Free trial 30 days 7 days
Free trial length 30 days 7 days
Deployment Cloud, Self-hosted Cloud, Self-hosted
Platforms Web Web
Support Email, Live chat, Community, Docs Email, Community, Docs
Compliance SOC 2, ISO 27001, GDPR, HIPAA, SSO/SAML SOC 2, HIPAA, SSO/SAML
Integrations 30+ integrations 10 integrations
Built for Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features W&B Weave 2/3 · Helicone 2/3
LLM tracing ✓ ✓
Evaluation support ✓ ✓
Alerts Not checked yet Not checked yet
Specs
Deployment options Both Both
Trace retention Not checked yet Not checked yet
LLM providers Not checked yet Not checked yet
Our review
Pros
  • Traces LLM calls, retrieval steps, and multi-step agent activity
  • Combines evaluations, prompt experiments, and guardrail scorers
  • Integrates with major model providers and agent frameworks
  • Routes requests to 100+ models through an OpenAI-compatible gateway
  • Combines tracing, prompt management, evaluations, and cost analytics
  • Offers cloud or Docker-based self-hosted deployment
Cons
  • The $60/month Pro plan is for W&B Pro, not a Weave-only price
  • Weave ingestion, storage, and some usage are billed separately
  • Enterprise features such as SSO and audit logs require Enterprise
  • Pro starts at $79/month, with usage-based pricing also applying
  • Hobby limits usage to 10,000 requests and storage to 1 GB
  • The free plan is limited to one seat and one organization
Our verdict

W&B Weave brings observability and evaluation to teams building LLM applications and production agents. It records inputs, outputs, metadata, latency, token usage, costs, tool calls, and agent activity across sessions, turns, steps, and…

Read the review →

Helicone brings model routing and LLM observability into one platform for developers and teams building AI applications. Its OpenAI-compatible gateway supports 100+ models, while request logging and dashboards cover requests, sessions,…

Read the review →
  1. W&B WeaveLlm Monitoring 8.7Free plan · 30-day trial
  2. HeliconeLlm Monitoring 8.4Free plan · 7-day trial

Strengths and trade-offs

  • W&B Weave — where it wins

    • Traces LLM calls, retrieval steps, and multi-step agent activity
    • Combines evaluations, prompt experiments, and guardrail scorers
    • Integrates with major model providers and agent frameworks

    Where it doesn't

    • The $60/month Pro plan is for W&B Pro, not a Weave-only price
    • Weave ingestion, storage, and some usage are billed separately
    • Enterprise features such as SSO and audit logs require Enterprise

  • Helicone — where it wins

    • Routes requests to 100+ models through an OpenAI-compatible gateway
    • Combines tracing, prompt management, evaluations, and cost analytics
    • Offers cloud or Docker-based self-hosted deployment

    Where it doesn't

    • Pro starts at $79/month, with usage-based pricing also applying
    • Hobby limits usage to 10,000 requests and storage to 1 GB
    • The free plan is limited to one seat and one organization
  • W&B Weave8.7/10 · Free plan · 30-day trial

    Trace LLM apps and agents, evaluate outputs, and monitor cost and safety signals.

    Visit W&B WeaveFull verdict →
  • Helicone8.4/10 · Free plan · 7-day trial

    A model gateway paired with tracing, prompt workflows, evaluations, and cost analytics.

    Visit HeliconeFull verdict →

More comparisons

All llm monitoring comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update