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ModelsOpenAIGPT-4 Turbo

Cheapest right now

No offer is selected as the cheapest right now: each of the lowest prices listed below says why on its row.

Cheapest, no training on prompts

No offer with a published no-training policy for this model.

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
2026-10-17$15.00, OpenAI$15.00
2026-10-18$15.00, OpenAI$15.00
2026-10-19$15.00, OpenAI$15.00
2026-10-20$15.00, OpenAI$15.00
2026-10-21$15.00, OpenAI$15.00
2026-10-22$15.00, OpenAI$15.00
2026-10-23$15.00, OpenAI$15.00
2026-10-26$15.00, NanoGPT$15.00

Cheapest offerOfficial list price

Offers

5 of 5 offers

Offers for GPT-4 Turbo, 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 OpenAI 10.00 30.00 15.00 –
2 NanoGPT 10.00 30.00 15.00 128k Unverified. Withdrawn by its lab; this seller has not shown it for sale for 72 hours: listed, not designated cheapest · last confirmed 31 October 2026
3 FastRouter 10.00 30.00 15.00 128k Unverified. Withdrawn by its lab; this seller has not shown it for sale for 72 hours: listed, not designated cheapest
4 Martian 10.00 30.00 15.00 – worldwide Unverified. Withdrawn by its lab; this seller has not shown it for sale for 72 hours: listed, not designated cheapest
5 OrcaRouter 10.00 30.00 15.00 128k Unverified. Withdrawn by its lab; this seller has not shown it for sale for 72 hours: listed, not designated cheapest

No training on promptsTraining terms not published

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

  • OpenAI

    $15.00

    OpenAI

    in
    $10.00
    out
    $30.00
    Context
    –

    No training on prompts

  • NanoGPT

    $15.00

    NanoGPT

    in
    $10.00
    out
    $30.00
    Context
    128k

    No training on promptsUnverified. Withdrawn by its lab; this seller has not shown it for sale for 72 hours: listed, not designated cheapest · last confirmed 31 October 2026

  • FastRouter

    in
    $10.00
    out
    $30.00
    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.

  • Martian

    $15.00

    Martian

    in
    $10.00
    out
    $30.00
    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.

  • OrcaRouter

    in
    $10.00
    out
    $30.00
    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.

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

Method

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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-turbo
MCP server
claude mcp add --transport http inferindex https://mcp.inferindex.dev/mcp

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