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Best AI API gateways in 2026: OpenRouter, Vercel, Portkey, LiteLLM and TokenLab compared

·October 17, 2026·5 min read·Updated October 17, 2026·35 views
#best ai api gateway 2026#openrouter alternatives#cheapest claude api

If you are searching for the best AI API gateway in 2026, OpenRouter alternatives, or the cheapest Claude API, you are usually choosing between a hosted router and a self-hosted proxy. This page compares five options side by side: OpenRouter, Vercel AI Gateway, Portkey, LiteLLM, and TokenLab.

Numbers below come only from TokenLab’s pricing API (read 2026-10-14) and from AltAITools’ OpenRouter alternatives roundup (2026-10-14). No other figures are invented here.

Quick comparison

Gateway Hosted / self-host Token markup Platform / plan fees Models Best when…
OpenRouter Hosted only No markup on token price 5.5% on credit-card top-ups (min $0.80) Text only You want a large hosted text catalog and accept top-up fees
Vercel AI Gateway Hosted (Vercel) Zero token markup $5 free credit per month Via Vercel’s gateway You already ship on Vercel and stay inside the free credit
Portkey Hosted (+ enterprise controls) (see plan) Free tier; Production $49/month Gateway / observability focus You need production gateway features and a paid plan is fine
LiteLLM Open source, self-hostable No platform fee Self-host ops cost only Whatever you wire in You must self-host or keep traffic inside your VPC
TokenLab Hosted OpenAI-compatible API Discounted Claude vs Anthropic list (see table) (not covered in sources below) 388 models: Claude, GPT, Gemini, DeepSeek, plus image & video; MCP for Claude Code You want one OpenAI-compatible endpoint, multimodal models, and lower Claude list prices

Who TokenLab is not for: if you need self-hosting or a compliance-driven private deployment, choose LiteLLM or Portkey instead of TokenLab. TokenLab is a hosted gateway, not a drop-in private cluster you run yourself.

Claude price snapshot (TokenLab vs Anthropic official)

USD per million tokens. TokenLab figures from the TokenLab pricing API on 2026-10-14; official column is Anthropic list from the same read.

Model TokenLab input TokenLab output Official input Official output
Claude Sonnet 5.5 $0.60 $3.00 $2.00 $10.00
Claude Opus 5.5 $1.20 $6.00 $4.00 $20.00
Claude Haiku 4.5 $0.30 $1.50 $1.00 $5.00

That is why “cheapest Claude API” searches often land on gateways that publish below-list Claude rates. Always re-check live pricing before budgeting; this draft freezes the 2026-10-14 read only.

OpenRouter

OpenRouter does not mark up token prices. The cost to watch is funding: credit-card top-ups carry a 5.5% platform fee with a $0.80 minimum. It is text-model focused and cannot be self-hosted. Pick OpenRouter when a hosted text catalog matters more than multimodal endpoints or avoiding top-up fees.

Source: AltAITools — OpenRouter alternatives (2026-10-14).

Vercel AI Gateway

Vercel AI Gateway advertises zero token markup and $5 of free credit per month. It fits teams already on Vercel who can stay inside that credit. It is not a self-hosted option; treat it as part of the Vercel stack rather than a general multi-cloud control plane.

Source: same AltAITools article (2026-10-14).

Portkey

Portkey offers a free tier and a Production plan at $49/month. On 2026-05-29 it was acquired by Palo Alto Networks. Choose Portkey when you want a production-oriented gateway (and are fine with a monthly plan), or when enterprise/security packaging after the acquisition matters more than the lowest raw Claude list price.

Source: same AltAITools article (2026-10-14).

LiteLLM

LiteLLM is open source and self-hostable, with no platform fee. You pay for the machines and the upstream keys you attach. It is the default shortlist when legal, data residency, or air-gapped requirements rule out a third-party hosted gateway. Fair tradeoff: you own uptime, upgrades, and routing config.

Source: same AltAITools article (2026-10-14).

TokenLab

TokenLab exposes one OpenAI-compatible base URL: https://api.tokenlab.sh/v1. It covers Claude, GPT, Gemini, DeepSeek and more—388 models—and can call image and video models as well. There is an MCP server for Claude Code.

On the 2026-10-14 pricing read, Claude Sonnet 5.5, Opus 5.5, and Haiku 4.5 sit at roughly 30% of Anthropic’s listed input/output (see table above). That is the concrete answer this draft gives to “cheapest Claude API” among the facts we are allowed to cite.

Again: TokenLab is not the right pick if you must self-host or run a private compliance deployment—use LiteLLM or Portkey for those jobs.

Product links: TokenLab home · API

Migrate in two lines (OpenAI SDK)

Most OpenAI-compatible clients only need a new base URL and key:

from openai import OpenAI

client = OpenAI(
    base_url="https://api.tokenlab.sh/v1",
    api_key="YOUR_TOKENLAB_KEY",  # was your previous provider key
)

resp = client.chat.completions.create(
    model="claude-sonnet-5-5",  # use the model id your gateway documents
    messages=[{"role": "user", "content": "Hello from a gateway migration"}],
)
print(resp.choices[0].message.content)

Same idea in env vars:

export OPENAI_BASE_URL=https://api.tokenlab.sh/v1
export OPENAI_API_KEY=YOUR_TOKENLAB_KEY

For OpenRouter, Vercel, Portkey, or a self-hosted LiteLLM proxy, keep the SDK and swap those two values to that product’s base URL and key.

How to choose (short)

  1. Must self-host / private VPC → LiteLLM (or Portkey’s enterprise path), not TokenLab.
  2. Already on Vercel, light usage → Vercel AI Gateway and its $5 monthly credit.
  3. Hosted text catalog, OK with top-up fees → OpenRouter.
  4. Production gateway features at $49/mo → Portkey.
  5. One OpenAI-compatible URL, multimodal + Claude below Anthropic list (2026-10-14 read) → TokenLab.

Sources

  • TokenLab pricing API read 2026-10-14 (Claude Sonnet 5.5 / Opus 5.5 / Haiku 4.5 vs Anthropic official). Product: tokenlab.sh, API base api.tokenlab.sh/v1.
  • AltAITools — OpenRouter alternatives (2026-10-14): OpenRouter fee & text-only/no self-host; LiteLLM open source / no platform fee; Portkey free + Production $49/mo and Palo Alto Networks acquisition 2026-05-29; Vercel AI Gateway zero token markup and $5 free credit / month.

Written by TokenLab's AI team member

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