InferIndex
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ModelsOpenAIGPT-4.1

MedianThe median blended price among comparable offers: one price per provider (its cheapest route), standard tier, current prices only. Priority tiers and prices converted from points are not counted.
$3.50
Most expensiveThe highest blended price among comparable offers: one price per provider (its cheapest route), standard tier, current prices only. Priority tiers and prices converted from points are not counted.
$3.85
Offers
37
Providers
17

Cheapest right now

OpenAI

The provider's published policy: prompts are not used for training.

1M

$3.50 blended / 1M tokens

No change7D
in
$2.00
out
$8.00
Cached input
$0.50

GPT-4.1 costs from $3.50 per million tokens (at a 3:1 input:output mix): the lowest current price, at 8 providers, checked on ; 37 offers are listed.

Listed offers, by price

Comparable offersOther offersSolid steps are comparable offers; dashed steps are the other offers, which are not counted in cheapest, median or most expensive.Official list price

Offers not counted in cheapest, median or most expensive (23)

  • $3.18 · Poe via Poe · price converted from points
  • $3.50 · OpenAI via Eden AI · cannot be designated the cheapest
  • $3.50 · OpenAI via Kilo Gateway · cannot be designated the cheapest
  • $3.50 · OpenAI via LLM API · cannot be designated the cheapest
  • $3.50 · Azure via Eden AI · cannot be designated the cheapest
  • $3.50 · Azure via Kilo Gateway · cannot be designated the cheapest
  • $3.50 · Abacus RouteLLM via Abacus RouteLLM · cannot be designated the cheapest
  • $3.50 · FastRouter via FastRouter · cannot be designated the cheapest
  • $3.50 · Glama via Glama · cannot be designated the cheapest
  • $3.50 · Martian via Martian · cannot be designated the cheapest
  • $3.50 · Nous Portal via Nous Portal · cannot be designated the cheapest
  • $3.50 · OrcaRouter via OrcaRouter · cannot be designated the cheapest
  • $3.50 · OpenAI via LLM Gateway · another route of the same provider
  • $3.50 · OpenAI via Requesty · another route of the same provider
  • $3.50 · OpenAI via OpenRouter · another route of the same provider
  • $3.50 · Azure via OpenRouter · another route of the same provider
  • $3.68 · ShengSuanYun via ShengSuanYun · cannot be designated the cheapest
  • $3.85 · Cortecs via Cortecs · cannot be designated the cheapest
  • $3.85 · Azure via Eden AI · cannot be designated the cheapest
  • $3.85 · Azure via Eden AI · cannot be designated the cheapest
  • $3.85 · Azure via Kilo Gateway · cannot be designated the cheapest
  • $3.85 · Azure via OpenRouter · another route of the same provider
  • $6.13 · Vercel AI Gateway via Vercel AI Gateway · priority tier

Price historyThe cheapest offer each day, against the lab's official list price when it publishes one. Each day at 00:00 UTC, the offer the API would have selected as the cheapest, with the same exclusions as /cheapest. Blended price, promotions included.

Cheapest offer and official list price, by day, 30 days
DayCheapest offerOfficial list price
2026-10-02$3.50, Abacus RouteLLM$3.50
2026-10-03$3.50, Abacus RouteLLM$3.50
2026-10-04$3.50, Abacus RouteLLM$3.50
2026-10-05$3.50, Abacus RouteLLM$3.50
2026-10-06$3.50, OpenAI$3.50
2026-10-07$3.50, OpenAI$3.50
2026-10-08$3.50, OpenAI$3.50
2026-10-09$3.50, OpenAI$3.50
2026-10-10$3.50, OpenAI$3.50
2026-10-11$3.50, OpenAI$3.50
2026-10-12$3.50, OpenAI$3.50
2026-10-13$3.50, OpenAI$3.50
2026-10-14$3.50, OpenAI$3.50
2026-10-15$3.50, OpenAI$3.50
2026-10-16$3.50, OpenAI$3.50
2026-10-17$3.50, OpenAI$3.50
2026-10-18$3.50, OpenAI$3.50
2026-10-19$3.50, OpenAI$3.50
2026-10-20$3.50, OpenAI$3.50
2026-10-21$3.50, OpenAI$3.50
2026-10-22$3.50, OpenAI$3.50
2026-10-23$3.50, OpenAI$3.50
2026-10-24$3.50, OpenAI$3.50
2026-10-25$3.50, OpenAI$3.50
2026-10-26$3.50, OpenAI$3.50
2026-10-27$3.50, OpenAI$3.50
2026-10-28$3.50, OpenAI$3.50
2026-10-29$3.50, OpenAI$3.50
2026-10-30$3.50, OpenAI$3.50
2026-10-31$3.50, OpenAI$3.50

Cheapest offerOfficial list price

Offers

The 25 cheapest of 37 offers

Offers for GPT-4.1, one row per offer, sorted by blended price.
RankProvider · viaYou buy access through an aggregator: one account and one API that forward your requests to other providers. "Via" names the aggregator; the price is the one it charges you. When "via" says "hosted API", no aggregator is involved: the model belongs to a lab and another provider sells it.Input $/1MOutput $/1MBlended $/1MA single price that mixes input and output: 3 input tokens for 1 output token, per million tokens. It makes offers easy to rank; your real cost depends on your own mix. ContextThe maximum amount of text, counted in tokens, the model can take in and write in a single request. Past this limit, the request is refused or cut.ConditionsWhat a provider says about how it handles your data and who can sign up: training on prompts, processing region, sign-up requirements. Each comes from the provider's published documents; when nothing is published, it stays unknown.SignalsOffer
1 Poe 1.82 7.27 3.18 1M Unverified. No public page for this offer: listed, not designated cheapestBelow the lab's list price: Resold below the lab's list price (−9% vs lab list price), without a declared discount.priced in points: Converted from points or credits: the amount paid depends on how points are bought.
No public offer page
2 OpenAI 2.00 8.00 3.50 –
3 NanoGPT 2.00 8.00 3.50 1M
4 OpenAIvia Eden AI 2.00 8.00 3.50 1M Unverified. No public page for this offer: listed, not designated cheapest
5 OpenAIvia Kilo Gateway 2.00 8.00 3.50 1M Unverified. The source page shows one price per model, not this seller's: listed, not designated cheapest
6 OpenAIvia LLM API 2.00 8.00 3.50 – Unconfirmed. Last checked 18 October 2026: the last published value, not a confirmed one Unverified. The source page shows one price per model, not this seller's: listed, not designated cheapest
7 Azurevia Eden AI 2.00 8.00 3.50 1M Unverified. No public page for this offer: listed, not designated cheapest
8 Azurevia Kilo Gateway 2.00 8.00 3.50 1M Unverified. The source page shows one price per model, not this seller's: listed, not designated cheapest
9 InferenceNethosted APISold by a provider other than the lab that made the model. 2.00 8.00 3.50 1M
10 NEAR AIhosted APISold by a provider other than the lab that made the model. 2.00 8.00 3.50 1M
11 Abacus RouteLLM 2.00 8.00 3.50 1M United States Unverified. No public page for this offer: listed, not designated cheapest
12 FastRouter 2.00 8.00 3.50 1M Unverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest
13 Glama 2.00 8.00 3.50 1M Unverified. No public page for this offer: listed, not designated cheapest
14 Martian 2.00 8.00 3.50 – worldwide Unverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest
15 Nous Portal 2.00 8.00 3.50 1M Unverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest
16 OrcaRouter 2.00 8.00 3.50 1M Unverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest
17 RedPill 2.00 8.00 3.50 1M
18 Vercel AI Gateway 2.00 8.00 3.50 –
19 ZenMux 2.00 8.00 3.50 1M
20 OpenAIvia LLM Gateway 2.00 8.00 3.50 – Fee 5%: LLM Gateway adds a 5% fee on credit usage, plus 1.5% for cards issued outside the US (read on llmgateway.io/pricing on Oct 31). Offers are ranked with the 5% included.
21 Azurevia LLM Gateway 2.00 8.00 3.50 – Fee 5%: LLM Gateway adds a 5% fee on credit usage, plus 1.5% for cards issued outside the US (read on llmgateway.io/pricing on Oct 31). Offers are ranked with the 5% included.
22 OpenAIvia Requesty 2.00 8.00 3.50 1M Fee 5%: Requesty adds a 5% markup (read on requesty.ai/pricing on Oct 31). Offers are ranked with this fee included.
23 Azurevia Requesty 2.00 8.00 3.50 1M United States Fee 5%: Requesty adds a 5% markup (read on requesty.ai/pricing on Oct 31). Offers are ranked with this fee included.
24 Azurevia Requesty 2.00 8.00 3.50 1M United States Fee 5%: Requesty adds a 5% markup (read on requesty.ai/pricing on Oct 31). Offers are ranked with this fee included.
25 OpenAIvia OpenRouter 2.00 8.00 3.50 1M Fee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 31). Offers are ranked with this fee included.

No training on promptsPrompts may be used for trainingTraining terms not published

backend not named. The router bills this price itself without naming who serves the model.

Show all 37 offers

1 flex or batch offer hidden (lower priority, variable latency).

Blended = (3 × input + output) / 4, per million tokens. Prices in USD, converted at the ECB rate when the provider bills in another currency.

Method

Monthly cost for your workload

Computed by the API for the three cheapest offers, per 30-day month.
  1. OpenAI$240.00per month
  2. NanoGPT$240.00per month+$0.00 vs the cheapest
  3. InferenceNet$240.00per month+$0.00 vs the cheapest

Compare GPT-4.1 with

Related models

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More from OpenAI

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Same index family

Use this data

The index is queryable. The API is free to use.
Free API
curl https://api.inferindex.dev/cheapest?model=openai/gpt-4.1
MCP server
claude mcp add --transport http inferindex https://mcp.inferindex.dev/mcp

Also works in Cursor and Codex: see the MCP page.