PALM SOUQ vs Helicone: LLM Cost Governor & Gateway Comparison

PALM SOUQ vs Helicone

Helicone is an open-source observability platform: one header gives you request logs, cost tracking, sessions and user metrics. PALM SOUQ governs spend in the request path and reports margin per customer, without storing prompts.

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Capabilities based on Helicone's public documentation. Corrections: legal@palmsouqltd.com

client.py (with PALM SOUQ)Python

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://gateway.palmsouqltd.com/v1",
    api_key=os.environ["OPENAI_API_KEY"],
    default_headers={
        "X-PalmSouq-Tenant": account.id,       # your customer ID
        "X-PalmSouq-Tier": account.plan,       # starter | team | enterprise
        "X-PalmSouq-Feature": "support-agent", # optional cost center
    },
)

client.py (Helicone)Python

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://oai.helicone.ai/v1",
    api_key=os.environ["OPENAI_API_KEY"],
    default_headers={
        "Helicone-Auth": f"Bearer {os.environ['HELICONE_API_KEY']}",
        "Helicone-User-Id": account.id,
        "Helicone-Property-Feature": "support-agent",
    },
)

Open-source LLM observability

What Helicone does well.

Helicone is quick to adopt: change the base URL, add an auth header, and you get request logs, latency, cost and user-level metrics in a clean dashboard.
Sessions and custom properties make multi-step agent traces readable, which is valuable when debugging prompts.
It is open source and self-hostable, and it offers caching and header-based rate limiting policies.

Capability matrix

PALM SOUQ and Helicone, side by side.

Descriptions, not checkmarks: most rows are a question of emphasis rather than presence.

Capability	PALM SOUQ	Helicone
Request and response logging	Metadata only; Zero Payload Retention	Yes, a core feature, with options to omit bodies
Cost tracking per user or customer	Per tenant, tier, feature and user	Yes, via user IDs and custom properties
Rate limiting	Sliding-window token and dollar limits per tenant	Yes, header-based rate limit policies
Runaway loop heuristics in the request path	Four heuristics with HTTP 429 halt in under 50 ms	Sessions make loops visible; no dedicated loop breaker documented
Per-tenant gross margin (revenue vs COGS)	Built in	Cost views; revenue not modelled
Usage sync to billing platforms	Stripe, Metronome, Orb, Lago	Data export and API
Prompt management and evaluations	Not a focus	Yes
Open source	SDKs are open source; gateway is commercial	Yes

Where PALM SOUQ differs

Governance in the request path, keyed on your customer.

Governing versus observing

Helicone's centre of gravity is seeing what happened: logs, traces, costs and evaluations. PALM SOUQ's centre of gravity is deciding what is allowed to happen next: budgets per tenant and tier, fallbacks at a threshold, and breakers that halt an agent mid-run.

No payloads stored

Observability tools are valuable precisely because they keep request and response bodies. PALM SOUQ takes the opposite position by design: prompts and completions stream through memory and are never written to disk. Teams in legal, health and finance often run both, with payload logging limited to a sampled, internal-only stream.

Revenue on the same row as cost

Helicone can show cost per user. PALM SOUQ stores what each tenant pays you and shows gross margin per tenant and per tier, then pushes overages to your billing platform.

Choose Helicone when

Your main need is debugging prompts and agent traces with full request bodies.
You want an open-source tool you can self-host for free.
Spend is small enough that alerts after the fact are acceptable.

Choose PALM SOUQ when

You need spend stopped while it happens, not reported afterwards.
Policy forbids storing prompt or completion text with a third party.
Finance needs margin per customer and overages in the billing system.

Using both: Running both is common: Helicone for sampled traces in development, PALM SOUQ in production for budgets, breakers and billing.

Migration

Moving from Helicone.

Helicone's user ID header maps directly onto X-PalmSouq-Tenant or X-PalmSouq-User. Custom properties used for cost centres map onto X-PalmSouq-Feature.

01Map Helicone-User-Id to X-PalmSouq-Tenant (account) and X-PalmSouq-User (end user) if you track both.
02Map Helicone-Property-* cost centres to X-PalmSouq-Feature.
03Set tier budgets from the last 30 days of Helicone cost data.
04Keep Helicone on a development base URL if your team relies on payload traces.

client.py (Helicone)Python

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://oai.helicone.ai/v1",
    api_key=os.environ["OPENAI_API_KEY"],
    default_headers={
        "Helicone-Auth": f"Bearer {os.environ['HELICONE_API_KEY']}",
        "Helicone-User-Id": account.id,
        "Helicone-Property-Feature": "support-agent",
    },
)

client.py (with PALM SOUQ)Python

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://gateway.palmsouqltd.com/v1",
    api_key=os.environ["OPENAI_API_KEY"],
    default_headers={
        "X-PalmSouq-Tenant": account.id,       # your customer ID
        "X-PalmSouq-Tier": account.plan,       # starter | team | enterprise
        "X-PalmSouq-Feature": "support-agent", # optional cost center
    },
)

PALM SOUQ vs Helicone: questions

Does Helicone support rate limiting?

Yes. Helicone supports rate limit policies set through request headers. PALM SOUQ adds loop heuristics, per-tenant margin and billing sync on top of limits.

Can PALM SOUQ show me prompt text for debugging?

No. PALM SOUQ never writes prompts or completions to disk. Use your own logs or an observability tool for payloads.

Is PALM SOUQ open source?

The Python and TypeScript SDKs are open source. The gateway is a commercial service, with a VPC or self-hosted option on the Scale plan.

Helicone is a trademark of its owner and is referenced here for comparison only. Spotted something out of date? Email legal@palmsouqltd.com.

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