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ModelsUpstageSolar Pro 4

Solar Pro 4

upstage/solar-pro4524k context Compare →
Offers
6
Providers
5

Cheapest right now

Upstage

via OpenRouter

524k

$0.263 blended / 1M tokens

No change7D
in
$0.15
out
$0.60
Cached input
$0.03

Price drop observed: The blended price is 50% lower than before this drop; possibly temporary. · Discount shown by the seller, no end date announced, seen on Oct 30, 2026Fee 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.

Go to offer Go to offer at OpenRouter (opens in a new tab)via OpenRouter

Previous price $0.30 / $1.20

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). #169 of 419Best rank in the source's rank spread, 169th to 194th, given the confidence intervals of all ranked models. 183rd by score. 1,388 1,383 to 1,393Arena Score · 26,159 votes
  • Code Arena (WebDev)The Code Arena ranking (WebDev). The source publishes no style-corrected series (as read on 9 October 2026). #106 of 152Best rank in the source's rank spread, 106th to 121st, given the confidence intervals of all ranked models. 113th by score. 1,370 1,360 to 1,381Arena Score · 4,630 votes
  • Agent Arena aggregateThe Agent Arena aggregate score: a score of another kind (not an Arena score), on a scale of its own; it cannot be compared with the other series. #55 of 57Best rank in the source's rank spread, 55th to 57th, given the confidence intervals of all ranked models. 57th by score. −0.208 −0.230 to −0.186IPS score · 522,529 observations

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

Solar Pro 4 costs from $0.263 per million tokens (at a 3:1 input:output mix): the cheapest current offer, at Upstage, checked on ; 6 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.

Offers not counted in cheapest, median or most expensive (5)

  • $0.053 · Glama via Glama · cannot be designated the cheapest
  • $0.053 · NanoGPT via NanoGPT · cannot be designated the cheapest
  • $0.158 · Martian via Martian · cannot be designated the cheapest
  • $0.263 · Nous Portal via Nous Portal · cannot be designated the cheapest
  • $0.525 · Upstage via Kilo Gateway · cannot be designated the cheapest

Cheapest that confirms no training on your prompts. The provider's published policy: prompts are not used for training.

$0.053 blended / 1M tokens

in
$0.03
out
$0.12
Cached input
$0.006

Thinking: Thinking: a mode of the model. Designated cheapest because no standard offer exists

Go to offer Go to offer at NanoGPT (opens in a new tab)via NanoGPT

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$0.053, Glama–
2026-10-03$0.053, Glama–
2026-10-04$0.053, Glama–
2026-10-05$0.053, Glama–
2026-10-06$0.053, Glama–
2026-10-07$0.053, Glama–
2026-10-08$0.053, Glama–
2026-10-09$0.053, Glama–
2026-10-10$0.053, Glama–
2026-10-11$0.053, Glama–
2026-10-12$0.053, Glama–
2026-10-13$0.053, Glama–
2026-10-14$0.053, Glama–
2026-10-15$0.053, Glama–
2026-10-16$0.053, Glama–
2026-10-17$0.053, Glama–
2026-10-18$0.053, Glama–
2026-10-19$0.158, Upstage–
2026-10-20$0.158, Martian–
2026-10-21$0.158, Martian–
2026-10-22$0.158, Martian–
2026-10-23$0.158, Martian–
2026-10-24$0.263, Upstage–
2026-10-25$0.263, Upstage–
2026-10-26$0.263, Upstage–
2026-10-27$0.263, Upstage–
2026-10-28$0.263, Upstage–
2026-10-29$0.263, Upstage–
2026-10-30$0.263, Upstage–
2026-10-31$0.263, Upstage–

Cheapest offer

Offers

6 of 6 offers

Offers for Solar Pro 4, 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 Glama 0.03 0.12 0.053 524k Unverified. No public page for this offer: listed, not designated cheapest
: Glama (opens in a new tab). No public price page for this model
2 NanoGPT 0.03 0.12 0.053 524k Thinking: Thinking: a mode of the model, not its standard offer. Never designated cheapest while a standard offer exists
Go to offer at NanoGPT (opens in a new tab)
3 Martian 0.09 0.36 0.158 – worldwide Unverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest
See pricing at Martian (opens in a new tab)
4 Nous Portal 0.15 0.60 0.263 524k Unverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapest
See pricing at Nous Portal (opens in a new tab)
5 Upstagevia OpenRouter 0.15 0.60 0.263 524k Price drop observed: The blended price is 50% lower than before this drop; possibly temporary. · Discount shown by the seller, no end date announced, seen on Oct 30, 2026Fee 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.
Go to offer at OpenRouter (opens in a new tab)
6 Upstagevia Kilo Gateway 0.30 1.20 0.525 524k Unverified. No public page for this offer: listed, not designated cheapest
: Kilo Gateway (opens in a new tab). No public price page for this model

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.

  • Glama

    $0.053

    Glama

    in
    $0.03
    out
    $0.12
    Context
    524k

    No training on promptsUnverified. No public page for this offer: 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

  • NanoGPT

    $0.053

    NanoGPT

    in
    $0.03
    out
    $0.12
    Context
    524k

    No training on promptsThinking: Thinking: a mode of the model, not its standard offer. Never designated cheapest while a standard offer exists

    Go to offer Go to offer at NanoGPT (opens in a new tab)via NanoGPT

  • Martian

    $0.158

    Martian

    in
    $0.09
    out
    $0.36
    Context
    –

    Training terms not publishedworldwideUnverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapestbackend not named: The router bills this price itself without naming who serves the model.

    See pricing See pricing at Martian (opens in a new tab)via Martian

  • Nous Portal

    $0.263

    Nous Portal

    in
    $0.15
    out
    $0.60
    Context
    524k

    Prompts may be used for trainingUnverified. Neither seller nor price found on its page for 72 hours: listed, not designated cheapestbackend not named: The router bills this price itself without naming who serves the model.

    See pricing See pricing at Nous Portal (opens in a new tab)via Nous Portal

  • Upstage

    $0.263

    OpenRouter

    in
    $0.15
    out
    $0.60
    Context
    524k

    Training terms not publishedPrice drop observed: The blended price is 50% lower than before this drop; possibly temporary. · Discount shown by the seller, no end date announced, seen on Oct 30, 2026Fee 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.

    Go to offer Go to offer at OpenRouter (opens in a new tab)via OpenRouter

  • Upstage

    $0.525

    Kilo Gateway

    in
    $0.30
    out
    $1.20
    Context
    524k

    Training terms not publishedUnverified. No public page for this offer: listed, not designated cheapest

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

Monthly cost for your workload

Computed by the API for the three cheapest offers, per 30-day month.
  1. Upstage$18.00per month

Compare Solar Pro 4 with

Related models

More from Upstage

All Upstage models

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=upstage/solar-pro4
MCP server
claude mcp add --transport http inferindex https://mcp.inferindex.dev/mcp

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