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GPT OSS 20B

OpenAI's open-weight 20B model for lower latency and local use cases.

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Input price
$0.077–$0.0825
Output price
$0.33
Context
128K
Max output
16K
135 (#77 of 79)
1288
—
Released
2025-08-31
InputTextOutputText

Providers

Providers that serve this model. With Auto, each request goes to the best available provider. Prices in USD per 1M tokens; stats cover the last 30 days.

Pricing

Prices vary by provider. Showing Amazon Bedrock, the lowest. Pick a provider above to see its prices.

ItemStandardPriorityFlex
Inputper 1M tokens$0.077$0.134752$0.0385
Outputper 1M tokens$0.33$0.5775$0.165

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Runs on your balance and is billed like any API request.

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Later turns reuse the provider’s prompt cache, which can lower cost and latency.

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Billed by usage

Similar models

Other models with the same output types at a similar price.

  • Better value: more capable, lower price
  • Pareto frontier
  • This model
  • Similar models

Capability scores are from Epoch AI’s Epoch Capabilities Index (CC BY 4.0, as of 2026-11-10), which combines dozens of benchmarks with GPT-5 set at 150. epoch.ai/eci

Price: our current input price per 1M tokens in USD, lowest across channels. Dated snapshots and resold copies of the same model are merged into one point; free models are not shown.

Shaded area: capability above and price below the median of all models. Pareto frontier: no other model is both cheaper and more capable.

GPT OSS 20BThis model
135
Input
$0.077–$0.0825
Output
$0.33
—
Input
$0.077
Output
$0.22
—
Input
$0.0803
Output
$0.4818
156
Input
$0.073–$0.33
Output
$0.292–$1.32
—
Input
$0.073
Output
$0.292

Human preference ratings are from the LMArena Text Arena (CC BY 4.0, as of 2026-11-09): Elo ratings from blind votes, on a different scale from capability scores. lmarena.ai/leaderboard/text