Back to models

GPT-OSS 20B

DeepInfra•

OpenAI open-weight 20B, the cheapest capable chat model in the catalog.

Capabilities:Advanced reasoning
Modalities
Input / Output Price
$0.04/$0.15/ 1M
Context Length
128K tokens
Parameters
-

Providers

Different companies host the same model. DOS.AI routes your request to one of them based on the routing mode you pick - Balanced (price + speed), Nitro (fastest), or Exacto (highest tool-calling accuracy).

Reasoning effortⓘAll
ProviderInput /1MOutput /1M
Latency
ThroughputUptimeContext
DeepInfrabfloat16
$0.04 (cheapest)$0.15 (cheapest)---128K
Together AI
$0.06$0.21---128K
Cloudflare
$0.20$0.30---128K

Pricing

Rates from the DOS.AI catalog for the billing units shown. Caching and provider discounts mean the price actually paid is often below the listed one.

Weighted Averagei
Weighted Avg Input Price
$0.10/ 1M tokens
Equal to list price
Weighted Avg Output Price
$0.22/ 1M tokens
Equal to list price
Price History3 verified endpoints
Weighted Average($0.10)
$0.00$0.08$0.16$0.2430d ago24d ago18d ago12d ago6d agoToday
Provider↕
Effective in /M↕
Effective out /M↕
Cache read /M↕
Latency↕
Throughput↕
Uptime↕
Savings↕
Together AI
$0.06
$0.21-----
DeepInfra
$0.04
$0.15-----
Cloudflare
$0.20
$0.30-----
Based on settled billing for the last 30d.Effective pricing represents the average price paid for requests to this endpoint, factoring in caching, discounts, and tiered pricing. Listed pricing shows the posted provider list prices.

Observed reliability

Success rate across observed provider requests. This is historical sample data, not live health or an uptime guarantee.

Not enough observations

Last 7 days

There are not enough valid request observations to report a success rate.

Benchmarks

Dated third-party measurements with source links.

Artificial Analysis

Overall · Snapshot captured:

Artificial Analysis Intelligence Index
10
Design Arena

Overall · Snapshot captured:

Elo
940
Win rate
40%
Rank
#115

API Integration

Use the DOS API to integrate GPT-OSS 20B into your applications. Compatible with standard OpenAI SDKs for easy drop-in migration.

</>Run inference
curl https://api.dos.ai/v1/chat/completions \
  -H "Authorization: Bearer $DOS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-oss-20b",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ]
  }'