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Portkey vs PromptLayer

AIR editors read Reddit, Hacker News, PeerSpot, and LLM gateway Discord threads and HN threads—plus the published AIR reviews—for how buyers pick between Portkey and PromptLayer.

Portkey

7.9/10
Overall Score
Recommend
Best for

Platform teams that need one gateway for multi-model routing, fallbacks, budgets, and request logs in front of many LLM providers.

Watch-out

Teams that only want a prompt CMS without a gateway, or buyers who will not accept a security-vendor-owned control plane after the Palo Alto deal.

PromptLayer

6.9/10
Overall Score
Conditional recommend
Best for

Product teams that change prompts often and want a log and version history beside the app.

Watch-out

Teams that need a full agent runtime, or groups whose prompts rarely change and already live in git.

How they differ

Axis Portkey PromptLayer
Gateway / routing coverage Stronger
Portkey stronger — Multi-provider gateway / routing 8.3 vs 7.3 (review).
Prompt versioning 7.3 (review).
Observability / logging Stronger
Portkey stronger — Logs & cost observability 8.1 vs 7.0 (review).
Logging 7.0 (review).
Prompt / governance extras Stronger
Portkey stronger — Prompt management & guardrails 8.0 vs 6.9 (review).
Collaboration 6.9 (review).
Self-host / scope discipline Stronger
Portkey stronger — Post-acquisition continuity 7.8 vs 6.7 (review).
Scope discipline 6.7 (review).
Innovation & product leadership Stronger
Portkey stronger — Innovation & product leadership 8.1 vs 6.7 (review).
Innovation & product leadership 6.7 (review).
Pricing clarity Stronger
Portkey stronger — Pricing 8.0 vs 7.0 (review).
Pricing 7.0 (review).
Contract fairness Stronger
Portkey stronger — Contract fairness 7.7 vs 6.8 (review).
Contract fairness 6.8 (review).
Ideal buyer / fit Stronger
Portkey stronger for Platform teams that need one gateway for multi-model routing, fallbacks, budgets, and request logs in front of many LLM providers.
Stronger
PromptLayer stronger for Product teams that change prompts often and want a log and version history beside the app.

What buyers say

“Portkey is better as the managed gateway with governance dashboards. PromptLayer is better when prompt versioning and observability are the product, not routing.”

treefarmer · HN · · source

“PromptLayer for prompt history and evals around prompts. Portkey when the ops problem is multi-provider routing and spend control.”

tikkun · HN · · source

Verdict

Portkey leads at 7.9 Recommend; PromptLayer sits at 6.9 Conditional recommend. Pick Portkey when Platform teams that need one gateway for multi-model routing, fallbacks, budgets, and request logs in front of many LLM providers. Pick PromptLayer when Product teams that change prompts often and want a log and version history beside the app. Recommendation labels differ; weight Portkey’s Overall lead against whether PromptLayer still matches your constraints.

How AIR scores vendors.