LiteLLM vs OpenRouter
Two of fourteen models named LiteLLM first on the direct prompt; one named OpenRouter. Both were named by all fourteen models and LiteLLM carries 58 labels and OpenRouter 42, so the shares are not directly comparable.
Named in four categories this edition.
Named in one category this edition.
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
LiteLLMFirst choices, of fourteen modelsOpenRouter
Across every category in the October 2026 Edition, LiteLLM and OpenRouter were named in the same answer 115 times, of the 193 answers naming LiteLLM and the 125 naming OpenRouter. In those answers OpenRouter took the first choice sixteen times and LiteLLM thirty-four.
Every model, every framing
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| 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 | | | | |
LiteLLM OpenRouter first choice named as an alternative argued againstblank: not namedEach cell is one answer, LiteLLM on the left and OpenRouter on the right.The direct prompt
LiteLLM first, OpenRouter not the choice
2 of 14 modelsOpenRouter was named in the answer but not as the choice, or not at all.OpenRouter first, LiteLLM an alternative
1 of 14 modelsLiteLLM was named in the answer but not as the choice, or not at all.Neither was the first choice, one was named
8 of 14 modelsThe answer put something else first and named one of the two as an alternative.Neither was named
3 of 14 modelsThe answer made no first choice from these two in this category.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
LiteLLM31%#1 of 8OpenRouter9%#3 of 8LiteLLM26%#2 of 8OpenRouter0%#8 of 8What the models said about LiteLLM
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“High Caution/Avoid if Possible: LiteLLM (especially older/self-hosted versions): Suffered a major supply chain attack” Grok 4.1 Fast · negative prompt · hard negative
“Avoid: - LiteLLM in its current state (until security issues are fully resolved)” Kimi K2 · negative prompt · hard negative
“Avoid LiteLLM unless you have dedicated security engineering” DeepSeek V4 Flash · negative prompt · hard negative
“For the most budget-conscious, LiteLLM (free, open-source) and OpenRouter (low-fee pay-as-you-go) are top choices.” Mistral Small · budget prompt · first choice
“If you are a Platform Engineer: Use LiteLLM. It allows you to standardize on one API key for the whole company” GLM 4.7 FlashX · comparative prompt · first choice
“If your engineering team is already familiar with Docker and prefers open-source, deploy LiteLLM + Langfuse.” Gemini 3.5 Flash · paraphrase prompt · first choice
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
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.