AI Indexes
IT AI Index
Index › Data platform › LLM gateways › OpenRouter vs Helicone
LLM gateways and observability · October 2026 Edition

OpenRouter vs Helicone

One of fourteen models named OpenRouter first on the direct prompt; one named Helicone. OpenRouter was named by fourteen of the fourteen models and Helicone by twelve and OpenRouter carries 42 labels and Helicone 27, so the shares are not directly comparable.

OpenRouter

accepted challenger

Named in one category this edition.

Helicone

accepted challenger

Named in one category this edition.

First-choice share9%6%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate17%15%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#3#4A position in a field of 8; printed, not drawn.
Labels4227A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, OpenRouter reading right to left. Rank and label count are printed, not drawn.LiteLLM was named alongside these two in eleven of the fourteen direct answers. LiteLLM vs OpenRouter · LiteLLM vs Helicone · Portkey vs OpenRouter

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the LLM gateways and observability page.

By framing

How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
OpenRouterFirst choices, of fourteen modelsHelicone
Direct111 against OpenRouter
Paraphrase123 against Helicone
Comparative41
Budget-constrained302 against OpenRouter
Scale-constrained00
Negative004 against OpenRouter · 1 against Helicone
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.

Across every category in the October 2026 Edition, OpenRouter and Helicone were named in the same answer fifty-one times, of the 125 answers naming OpenRouter and the 80 naming Helicone. In those answers Helicone took the first choice four times and OpenRouter seventeen.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where OpenRouter and Helicone stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 Flash
Perplexity Sonar
Grok 4.1 Fast
Mistral Small
DeepSeek V4 Flash
Llama 4 Maverick
Qwen 3.7 Flash
Kimi K2
GLM 4.7 FlashX
MiniMax M2.5
GPT-6 Luna
Muse Glimmer 30B
OpenRouter Helicone first choice named as an alternative argued againstblank: not namedEach cell is one answer, OpenRouter on the left and Helicone on the right.

The direct prompt

The plain question, one answer per model, grouped by where OpenRouter and Helicone stood in it.

OpenRouter first, Helicone not the choice

1 of 14 modelsHelicone was named in the answer but not as the choice, or not at all.
GLM 4.7 FlashXOpenRouter, Portkey alternatives: Kong AI Gateway, LiteLLM

Helicone first, OpenRouter not the choice

1 of 14 modelsOpenRouter was named in the answer but not as the choice, or not at all.
MiniMax M2.5Helicone, Portkey.ai alternatives: Cloudflare AI Gateway, Kong AI Gateway

Neither was the first choice, one was named

3 of 14 modelsThe answer put something else first and named one of the two as an alternative.
Claude Haiku 4.5Portkey alternatives: Bifrost, LiteLLM, Nexos.ai, OpenRouter
DeepSeek V4 FlashPortkey alternatives: Helicone, LiteLLM, OpenRouter
Muse Glimmer 30BPortkey alternatives: LiteLLM, OpenRouter

Neither was named

9 of 14 modelsThe answer made no first choice from these two in this category.
GPT-5.4 miniLiteLLM alternatives: Portkey
Gemini 3.5 FlashLiteLLM alternatives: Bifrost, Cloudflare AI Gateway, Portkey
Perplexity SonarPortkey alternatives: Bifrost, LiteLLM
Grok 4.1 FastPortkey AI Gateway alternatives: Bifrost, Cloudflare AI Gateway, LiteLLM
Mistral SmallNexos.ai alternatives: Cloudflare AI Gateway
Llama 4 Maverickno first choice
Qwen 3.7 FlashPortkey alternatives: Amazon Bedrock, Azure AI, LiteLLM
Kimi K2Portkey alternatives: Cloudflare AI Gateway, Kong AI Gateway, LiteLLM
GPT-6 LunaPortkey, now branded PRISMA AIRS AI Gateway alternatives: Cloudflare AI Gateway, LiteLLM

Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
OpenRouter leads by sixteen points.
OpenRouter21%#3 of 7
Helicone5%#5 of 7
The full small business standing →
Mid-marketThe figures above
OpenRouter leads by four points.
OpenRouter9%#3 of 8
Helicone6%#4 of 8
The full mid-market standing →
Enterprise
The order flips: Helicone leads at enterprise.
Helicone2%#5 of 8
OpenRouter0%#8 of 8
The full enterprise standing →

What the models said about OpenRouter

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.

“It is considered a high-risk option for data residency as its default catalog includes Chinese-hosted models.” Llama 4 Maverick · negative prompt · hard negative
“avoid OpenRouter for anything with sensitive/PII data” DeepSeek V4 Flash · negative prompt · hard negative
“OpenRouter, for confidential or regulated prompts: Not a blanket "avoid," but check both the gateway settings and the selected model provider.” GPT-6 Luna · negative prompt · soft negative
“For most mid‑market B2B companies, I’d start with OpenRouter or Portkey to get a managed gateway quickly” GLM 4.7 FlashX · direct prompt · first choice
“Start with OpenRouter. It is the easiest way to get access to multiple models with zero setup.” GLM 4.7 FlashX · budget prompt · first choice
“and OpenRouter if you want the lowest-ops path with immediate access to many models” Perplexity Sonar · budget prompt · first choice

What the models said about Helicone

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.

“What I'd Avoid... Helicone | In maintenance mode since Mintlify acquisition” Kimi K2 · paraphrase prompt · hard negative
“now in maintenance mode. Avoid for new builds.” DeepSeek V4 Flash · paraphrase prompt · hard negative
“now maintenance mode post-2026 acquisition—no new signups, but OSS viable ... Hosted future uncertain; basic evals.” Grok 4.1 Fast · paraphrase prompt · soft negative
“Choose Helicone if you need to debug why a specific LLM chain is failing, require the absolute lowest latency” Qwen 3.7 Flash · comparative prompt · first choice
“Start with Helicone. It is the most "agile" tool for a mid-sized B2B company.” Qwen 3.7 Flash · paraphrase prompt · first choice
“I'd recommend starting with Portkey.ai or Helicone” MiniMax M2.5 · direct prompt · first choice
Also compared

Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.