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ModelsOpenAIGPT-4o (2024-05-13)

Cheapest right now

Azure

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

128k

$7.50 blended / 1M tokens

Not enough history yet · tracking since Sep 15, 2026
in
$5.00
out
$15.00
Cached input
–

Retired by OpenAI on Oct 23, 2026; still served by Azure. Availability 100% on Oct 31, 2026, reported by an aggregator.Fee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 30). Offers are ranked with this fee included.

Public leaderboards

  • Text Arena, style controlThe series the source publishes by default for text since 16 May 2025: ranks corrected for the style of the answers (style control). #215 of 419Best rank in the source's rank spread, 215th to 239th, given the confidence intervals of all ranked models. 228th by score. 1,346 1,343 to 1,350Arena Score · 112,881 votes

Source: Arena (opens in a new tab) · Data under the CC BY 4.0 license (creativecommons.org/licenses/by/4.0) · CC BY 4.0 (opens in a new tab) · scores and ranks as published on 28 Oct 2026; the presentation is ours

GPT-4o (2024-05-13) costs from $7.50 per million tokens (at a 3:1 input:output mix): the cheapest current offer, at Azure, checked on ; 9 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 (8)

  • $4.38 · OpenAI via Requesty · cannot be designated the cheapest
  • $7.50 · OpenAI via OpenAI · cannot be designated the cheapest
  • $7.50 · Azure via Kilo Gateway · cannot be designated the cheapest
  • $7.50 · FastRouter via FastRouter · cannot be designated the cheapest
  • $7.50 · Glama via Glama · cannot be designated the cheapest
  • $7.50 · Martian via Martian · cannot be designated the cheapest
  • $7.50 · Nous Portal via Nous Portal · cannot be designated the cheapest
  • $7.50 · OrcaRouter via OrcaRouter · cannot be designated the cheapest

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$4.38, OpenAI$7.50
2026-10-03$4.38, OpenAI$7.50
2026-10-04$4.38, OpenAI$7.50
2026-10-05$4.38, OpenAI$7.50
2026-10-06$4.38, OpenAI$7.50
2026-10-07$4.38, OpenAI$7.50
2026-10-08$4.38, OpenAI$7.50
2026-10-09$4.38, OpenAI$7.50
2026-10-10$4.38, OpenAI$7.50
2026-10-11$4.38, OpenAI$7.50
2026-10-12$4.38, OpenAI$7.50
2026-10-13$4.38, OpenAI$7.50
2026-10-14$4.38, OpenAI$7.50
2026-10-15$4.38, OpenAI$7.50
2026-10-16$4.38, OpenAI$7.50
2026-10-17$4.38, OpenAI$7.50
2026-10-18$4.38, OpenAI$7.50
2026-10-19$7.50, OpenAI$7.50
2026-10-20$7.50, OpenAI$7.50
2026-10-21$7.50, OpenAI$7.50
2026-10-22$7.50, OpenAI$7.50
2026-10-23$7.50, OpenAI$7.50
2026-10-25$7.50, Azure$7.50
2026-10-26$7.50, Azure$7.50
2026-10-28$7.50, Azure$7.50
2026-10-29$7.50, Azure$7.50
2026-10-30$7.50, Azure$7.50
2026-10-31$7.50, Azure$7.50

Cheapest offerOfficial list price

Offers

9 of 9 offers

Offers for GPT-4o (2024-05-13), 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 OpenAIvia Requesty 2.50 10.00 4.38 128k Below the lab's list price: Resold below the lab's list price (−42% vs lab list price), without a declared discount.Fee 5%: Requesty adds a 5% markup (read on requesty.ai/pricing on Oct 30). Offers are ranked with this fee included.
2 OpenAI 5.00 15.00 7.50 –
3 Azurevia Kilo Gateway 5.00 15.00 7.50 128k Unverified. Withdrawn by its lab; this seller has not shown it for sale for 72 hours: listed, not designated cheapest
4 FastRouter 5.00 15.00 7.50 128k Unverified. Withdrawn by its lab; this seller has not shown it for sale for 72 hours: listed, not designated cheapest
5 Glama 5.00 15.00 7.50 128k Unverified. Withdrawn by its lab; this seller has not shown it for sale for 72 hours: listed, not designated cheapest
6 Martian 5.00 15.00 7.50 – worldwide Unverified. Withdrawn by its lab; this seller has not shown it for sale for 72 hours: listed, not designated cheapest
7 Nous Portal 5.00 15.00 7.50 128k Unverified. Withdrawn by its lab; this seller has not shown it for sale for 72 hours: listed, not designated cheapest
8 OrcaRouter 5.00 15.00 7.50 128k Unverified. Withdrawn by its lab; this seller has not shown it for sale for 72 hours: listed, not designated cheapest
9 Azurevia OpenRouter 5.00 15.00 7.50 128k Fee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 30). 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.

  • OpenAI

    $4.38

    Requesty

    in
    $2.50
    out
    $10.00
    Context
    128k

    Prompts may be used for trainingBelow the lab's list price: Resold below the lab's list price (−42% vs lab list price), without a declared discount.Fee 5%: Requesty adds a 5% markup (read on requesty.ai/pricing on Oct 30). Offers are ranked with this fee included.

  • OpenAI

    $7.50

    OpenAI

    in
    $5.00
    out
    $15.00
    Context
    –

    No training on prompts

  • Azure

    $7.50

    Kilo Gateway

    in
    $5.00
    out
    $15.00
    Context
    128k

    Training terms not publishedUnverified. Withdrawn by its lab; this seller has not shown it for sale for 72 hours: listed, not designated cheapest

    Seller's site: Kilo Gateway (opens in a new tab)No public price page for this model
  • FastRouter

    in
    $5.00
    out
    $15.00
    Context
    128k

    Training terms not publishedUnverified. Withdrawn by its lab; this seller has not shown it for sale for 72 hours: listed, not designated cheapestbackend not named: The router bills this price itself without naming who serves the model.

  • Glama

    $7.50

    Glama

    in
    $5.00
    out
    $15.00
    Context
    128k

    No training on promptsUnverified. Withdrawn by its lab; this seller has not shown it for sale for 72 hours: listed, not designated cheapestbackend not named: The router bills this price itself without naming who serves the model.

    Seller's site: Glama (opens in a new tab)No public price page for this model
  • Martian

    $7.50

    Martian

    in
    $5.00
    out
    $15.00
    Context
    –

    Training terms not publishedworldwideUnverified. Withdrawn by its lab; this seller has not shown it for sale for 72 hours: listed, not designated cheapestbackend not named: The router bills this price itself without naming who serves the model.

  • Nous Portal

    in
    $5.00
    out
    $15.00
    Context
    128k

    Prompts may be used for trainingUnverified. Withdrawn by its lab; this seller has not shown it for sale for 72 hours: listed, not designated cheapestbackend not named: The router bills this price itself without naming who serves the model.

  • OrcaRouter

    in
    $5.00
    out
    $15.00
    Context
    128k

    Training terms not publishedUnverified. Withdrawn by its lab; this seller has not shown it for sale for 72 hours: listed, not designated cheapestbackend not named: The router bills this price itself without naming who serves the model.

  • Azure

    $7.50

    OpenRouter

    in
    $5.00
    out
    $15.00
    Context
    128k

    No training on promptsFee 5.5%: OpenRouter adds a 5.5% fee when you buy credits (read on openrouter.ai/pricing on Oct 30). Offers are ranked with this fee included.

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. Azure$525.00per month

Compare GPT-4o (2024-05-13) with

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Announced replacement GPT-5.6 Sol

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