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Head-to-head · Byok System

Helicone vs TensorZero

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score Helicone #4 in Byok System 8.7/10 Free plan · 7-day trial Free planFree trial✓ 0 of 3 features Visit Helicone
TensorZero #5 in Byok System 8.6/10 Free plan Free plan✓ 0 of 3 features View TensorZero

Helicone leads on 0 checks, TensorZero on 0, and 1 is even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreHelicone · 8.7/10
  • Free planboth
  • Free trialonly Helicone

Helicone scores higher on our rubric for byok system: 8.7 against 8.6 out of 10; our editors rank them #4 and #5.

Helicone is the better fit for teams combining BYOK gateway and deep observability. TensorZero is the better fit for teams able to manage an unmaintained self-hosted gateway.

  • Helicone fits best

    Teams combining BYOK gateway and deep observability

  • TensorZero fits best

    Teams able to manage an unmaintained self-hosted gateway

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 Helicone 8.7/10 Visit ↗ TensorZero 8.6/10 Visit ↗
At a glance
Editor score 8.7 8.6
Ranking #4 in Byok System #5 in Byok System
Best for Teams combining BYOK gateway and deep observability Teams able to manage an unmaintained self-hosted gateway
Pricing model Free plan + paid Free
Starting price $79/mo Free plan
Free plan ✓ ✓
Free trial 7 days —
Deployment Cloud, Self-hosted Self-hosted
Platforms Web Web
Support Email, Community, Docs Email, Community, Docs
Integrations 10 integrations 20 integrations
Built for Solo, Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Helicone 0/3 · TensorZero 0/3
Request routing Not checked yet Not checked yet
Team key sharing Not checked yet Not checked yet
Self-hosting Not checked yet Not checked yet
Specs
Key storage Not checked yet Not checked yet
Supported providers Not checked yet Not checked yet
Usage limits Not checked yet Not checked yet
Our review
Pros
  • OpenAI-compatible gateway supports 100+ models, with rate limits and fallbacks
  • Traces requests and agent workflows, and tracks costs and evaluation scores
  • Offers cloud and Docker-based self-hosted deployment
  • Unifies access to multiple LLM providers through one API
  • Combines fallbacks, analytics, cost tracking, and experimentation
  • Open-source and self-hosted, with API-key authentication
Cons
  • Hobby is limited to 10,000 free requests, 1 GB storage, 1 seat, and 1 organization
  • Pro and Team subscriptions also have usage-based pricing
  • Enterprise uses custom-built packages rather than a fixed listed price
  • The project is no longer maintained
  • Archived on GitHub on June 12, 2026
  • Self-hosted deployment places operational responsibility on your team
Our verdict

Helicone brings an LLM gateway and observability tools together for developers and teams building AI applications. It routes, logs, traces, and analyzes model requests, with dashboards for requests, sessions, users, prompts, datasets,…

Read the review →

TensorZero combined an open-source LLM gateway with observability, evaluations, optimization, and experimentation. It was aimed at teams that wanted to route requests across model providers through a unified API, while tracking usage and…

Read the review →
  1. HeliconeByok System 8.7Free plan · 7-day trial
  2. TensorZeroByok System 8.6Free plan

Strengths and trade-offs

  • Helicone — where it wins

    • OpenAI-compatible gateway supports 100+ models, with rate limits and fallbacks
    • Traces requests and agent workflows, and tracks costs and evaluation scores
    • Offers cloud and Docker-based self-hosted deployment

    Where it doesn't

    • Hobby is limited to 10,000 free requests, 1 GB storage, 1 seat, and 1 organization
    • Pro and Team subscriptions also have usage-based pricing
    • Enterprise uses custom-built packages rather than a fixed listed price

  • TensorZero — where it wins

    • Unifies access to multiple LLM providers through one API
    • Combines fallbacks, analytics, cost tracking, and experimentation
    • Open-source and self-hosted, with API-key authentication

    Where it doesn't

    • The project is no longer maintained
    • Archived on GitHub on June 12, 2026
    • Self-hosted deployment places operational responsibility on your team
  • Helicone8.7/10 · Free plan · 7-day trial

    Routes and analyzes model requests, with tracing, prompt tools, and cloud or self-hosted deployment.

    Visit HeliconeFull verdict →
  • TensorZero8.6/10 · Free plan

    A capable self-hosted LLM gateway, but its project is no longer maintained.

    View TensorZeroFull verdict →

More comparisons

All byok system comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update