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OpenAI: GPT OSS 20B

Open GPT reasoning model for self-hosted agents and controllable deployments

Source-linked gpt-oss Open weights Released 2025-08-05
API record Report
InputT
OutputT
Input price$0.02/M
Output price$0.1/M
Context131.072K
Max output32.768K
Providers41
Inference availability

Providers

Provider-specific identifiers, limits, and listed prices per million tokens. Every row links back to the provider's own documentation.

Report a price
Providers offering GPT OSS 20B
ProviderProvider model IDContextMax outputInputOutputCache readCapabilitiesDocs
QVAC gpt-oss-20b 131.072K 32.768K — — — ReasoningToolsJSON Docs ↗
Kenari gpt-oss-20b 131.072K 32.768K — — — ReasoningTools Docs ↗
Nvidia openai/gpt-oss-20b 131.072K 32.768K — — — ReasoningToolsJSON Docs ↗
LMStudio openai/gpt-oss-20b 131.072K 32.768K — — — ReasoningTools Docs ↗
Kilo Gateway openai/gpt-oss-20b 131.072K 117.964K $0.02 $0.1 — ReasoningToolsJSON Docs ↗
Eden AI flexai/gpt-oss-20b 131.072K 32.768K $0.02 $0.1 — Reasoning Docs ↗
Weights & Biases openai/gpt-oss-20b 131.072K 131.072K $0.03 $0.13 $0.03 ReasoningToolsJSON Docs ↗
IO.NET openai/gpt-oss-20b 64K 4.096K $0.03 $0.14 $0.015 Tools Docs ↗
Deep Infra openai/gpt-oss-20b 131.072K 16.384K $0.03 $0.14 — ReasoningToolsJSON Docs ↗
OpenRouter openai/gpt-oss-20b 131.072K 117.964K $0.03 $0.13 $0.03 ReasoningToolsJSON Docs ↗
Eden AI deepinfra/openai/gpt-oss-20b 131.072K 32.768K $0.03 $0.14 — ReasoningToolsJSON Docs ↗
Merge Gateway openai/gpt-oss-20b 131.072K 32.768K $0.04 $0.2 $0.02 Reasoning Docs ↗
NovitaAI openai/gpt-oss-20b 131.072K 32.768K $0.04 $0.15 — ReasoningJSON Docs ↗
DevPass (LLM Gateway) gpt-oss-20b 131.072K 32.766K $0.04 $0.19 $0.01 ReasoningToolsJSON Docs ↗
SiliconFlow openai/gpt-oss-20b 131K 8K $0.04 $0.18 — ToolsJSON Docs ↗
Cortecs gpt-oss-20b 131K 131K $0.045 $0.167 — ReasoningToolsJSON Docs ↗
Clarifai openai/chat-completion/models/gpt-oss-20b 131.072K 16.384K $0.045 $0.18 — ReasoningTools Docs ↗
Databricks databricks-gpt-oss-20b 131.072K 32.768K $0.05 $0.2 — ReasoningToolsJSON Docs ↗
Eden AI together_ai/openai/gpt-oss-20b 131.072K 32.768K $0.05 $0.2 — ReasoningToolsJSON Docs ↗
Eden AI ovhcloud/gpt-oss-20b 131.072K 32.768K $0.05 $0.18 — ReasoningJSON Docs ↗
Together AI openai/gpt-oss-20b 131.072K 131.072K $0.05 $0.2 — ReasoningToolsJSON Docs ↗
FastRouter openai/gpt-oss-20b 131.072K 65.536K $0.05 $0.2 — ReasoningTools Docs ↗
Vercel AI Gateway openai/gpt-oss-20b 131.072K 8.192K $0.05 $0.2 — ReasoningToolsJSON Docs ↗
Eden AI fireworks_ai/accounts/fireworks/models/gpt-oss-20b 131.072K 32.768K $0.07 $0.3 $0.035 ReasoningToolsJSON Docs ↗
Eden AI fireworks_ai/gpt-oss-20b 131.072K 32.768K $0.07 $0.3 $0.035 ReasoningToolsJSON Docs ↗
Pioneer openai/gpt-oss-20b 131.072K 8.192K $0.07 $0.3 $0.035 ReasoningToolsJSON Docs ↗
Fireworks AI accounts/fireworks/models/gpt-oss-20b 131.072K 32.768K $0.07 $0.3 $0.035 ReasoningTools Docs ↗
Vertex openai/gpt-oss-20b-maas 131.072K 32.768K $0.07 $0.25 $0.007 ReasoningTools Docs ↗
Impossibl fireworks/gpt-oss-20b 131.072K 32.768K $0.07 $0.3 $0.035 ReasoningToolsJSON Docs ↗
Neon gpt-oss-20b 131.072K 25K $0.07 $0.3 — ReasoningToolsJSON Docs ↗
FrogBot gpt-oss-20b 131.072K 32.768K $0.07 $0.2 — ReasoningToolsJSON Docs ↗
Eden AI databricks/databricks-gpt-oss-20b 131.072K 32.768K $0.07 $0.3 $0.007 ReasoningTools Docs ↗
Impossibl groq/gpt-oss-20b 131.072K 32.768K $0.075 $0.3 $0.037 ReasoningToolsJSON Docs ↗
Groq openai/gpt-oss-20b 131.072K 65.536K $0.075 $0.3 $0.037 ReasoningToolsJSON Docs ↗
Eden AI groq/openai/gpt-oss-20b 131.072K 32.768K $0.075 $0.3 $0.037 ReasoningToolsJSON Docs ↗
Hugging Face openai/gpt-oss-20b 131.072K 32.768K $0.1 $0.5 — ReasoningToolsJSON Docs ↗
STACKIT openai/gpt-oss-20b 131.072K 8.192K $0.18 $0.29 — ReasoningTools Docs ↗
Cloudflare AI Gateway workers-ai/@cf/openai/gpt-oss-20b 128K 16.384K $0.2 $0.3 — ReasoningToolsJSON Docs ↗
Eden AI cloudflare/@cf/openai/gpt-oss-20b 128K 32.768K $0.2 $0.3 — ReasoningTools Docs ↗
Cloudflare Workers AI @cf/openai/gpt-oss-20b 128K 16.384K $0.2 $0.3 — ReasoningToolsJSON Docs ↗
NanoGPT openai/gpt-oss-20b 128K 16.384K $0.2 $0.3 — ReasoningTools Docs ↗

Capability badges appear only where the provider catalog explicitly lists support. A blank cell means the source is silent, not that the feature is absent.

Listed rates

Price across providers

Input price per million tokens as published by each provider. Bars are drawn from listed rates only — no traffic weighting, since the catalog observes no requests.

Lowest input $0.02/M

Across 37 priced providers

Median input $0.05/M

Midpoint of listed rates

Highest input $0.2/M

10.0× the lowest listed rate

Output range $0.1 – $0.5

Per million output tokens

Kilo Gateway $0.02/M
Eden AI $0.02/M
Weights & Biases $0.03/M
IO.NET $0.03/M
Deep Infra $0.03/M
OpenRouter $0.03/M
Eden AI $0.03/M
Merge Gateway $0.04/M
NovitaAI $0.04/M
DevPass (LLM Gateway) $0.04/M
SiliconFlow $0.04/M
Cortecs $0.045/M
Clarifai $0.045/M
Databricks $0.05/M
Eden AI $0.05/M
Eden AI $0.05/M
Together AI $0.05/M
FastRouter $0.05/M
Vercel AI Gateway $0.05/M
Eden AI $0.07/M
Eden AI $0.07/M
Pioneer $0.07/M
Fireworks AI $0.07/M
Vertex $0.07/M
Impossibl $0.07/M
Neon $0.07/M
FrogBot $0.07/M
Eden AI $0.07/M
Impossibl $0.075/M
Groq $0.075/M
Eden AI $0.075/M
Hugging Face $0.1/M
STACKIT $0.18/M
Cloudflare AI Gateway $0.2/M
Eden AI $0.2/M
Cloudflare Workers AI $0.2/M
NanoGPT $0.2/M
Cost calculator

Estimate a workload

$0.00
Excludes taxes, non-token charges, and tiered discounts.

2 providers list the identical $0.02 input rate, so price alone will not separate them — compare context limits, max output, and capabilities above.

Context limits also differ by provider, from 64K to 131.072K tokens. Compare the provider table above before choosing on price alone.

Specification

Capabilities

Recorded from the source catalog and provider listings.

✓ Reasoning Yes
✓ Tool calling Yes
× Structured output No
× Attachments No
× Vision input No
✓ Open weights Yes
Creator
OpenAI
Model family
gpt-oss
Knowledge cutoff
Not documented
License
Not documented
Release date
2025-08-05
Model ID
openai/gpt-oss-20b

Weights: Hugging Face ↗

Published evaluations

Benchmarks

Every result stays attached to its source, version, metric and harness. Scores from different versions are never merged, and the profile below plots each benchmark against its own population rather than on a shared scale.

Benchmark registry
Benchmark profile
Coding IndexCoding Index Agentic IndexAgentic Index IntelligenceIntelligence Index Design Arena: w…Design Arena: website Design Arena: d…Design Arena: dataviz This model — Coding Index: 20.7 index (20.2th percentile) This model — Agentic Index: 1.4 index (14.8th percentile) This model — Intelligence Index: 9 index (7.3th percentile) This model — Design Arena: website: 865 elo (3.4th percentile) This model — Design Arena: dataviz: 947 elo (5.5th percentile)

Each axis is this model's percentile among the 5 benchmarks it has published results for, measured against every other model with a score on that same benchmark. Percentiles are used because benchmarks do not share a scale — a 60 on one is not a 60 on another. Hover any point for the raw score.

Coding Index index Source ↗
Coding Index #163 of 205
Agentic Index index Source ↗
Agentic Index #163 of 193
Intelligence Index index Source ↗
Intelligence Index #178 of 192
Design Arena: website elo Source ↗
Design Arena: website #169 of 175
Design Arena: dataviz elo Source ↗
Design Arena: dataviz #156 of 165

Each strip shows every published score for that benchmark, with this model marked. The lighter shape behind the ticks is the density of results, and the dashed line is the median.

Cost against capability

Price and performance

Listed input price plotted against Coding Index, the benchmark with the widest published coverage that this model appears in.

0 43 86 $0.01 $0.1 $1 $10 Qwen: Qwen3.7 Plus — $0.32/M, score 55.9 OpenAI: GPT-5.4 (batch) — $1.25/M, score 71.1 Qwen: Qwen3.6 Plus — $0.325/M, score 54.5 Qwen: Qwen3 Next 80B A3B Thinking — $0.15/M, score 17.4 OpenAI: GPT-5.1 (batch) — $0.625/M, score 49.4 Anthropic: Claude Haiku 4.5 (batch) — $0.5/M, score 43.9 Z.ai: GLM 4.6 — $0.43/M, score 45.8 OpenAI: GPT-4 Turbo (batch) — $5/M, score 21.5 Anthropic: Claude Sonnet 4.5 (batch) — $1.5/M, score 52.1 GPT-5 Mini — $0.25/M, score 15.6 Mistral: Ministral 3 8B 2512 (batch) — $0.075/M, score 9.7 Anthropic: Claude Sonnet 4 — $3/M, score 37.6 MiMo-V2.5-Pro — $0.435/M, score 60.2 Gemini 3.1 Pro Preview — $2/M, score 68.8 OpenAI: o3 Mini High (batch) — $0.55/M, score 16.3 DeepSeek V4 Flash 0731 — $0.05/M, score 69.1 GPT-4o (2024-05-13) — $5/M, score 24.2 GPT OSS 20B — $0.02/M, score 20.7 GPT-4 Turbo — $10/M, score 21.5 o1 — $15/M, score 39.7 Qwen: Qwen3.8 Max (0902) — $2/M, score 71.8 Gemini 3.5 Flash — $1.5/M, score 70.1 Z.ai: GLM 5.3 Flash (batch) — $0.075/M, score 71.5 Gemma 3 12B IT — $0.05/M, score 5.8 GPT-4 — $30/M, score 13.1 GPT-4.1 mini — $0.4/M, score 20.2 DeepSeek V4 Pro — $0.435/M, score 59.4 Claude Sonnet 5 — $2/M, score 71.5 Mistral: Ministral 3 8B 2512 — $0.15/M, score 9.7 Gemini 3.1 Flash Lite Preview — $0.25/M, score 34.7 OpenAI: o1 (batch) — $7.5/M, score 39.7 Anthropic: Claude Fable 5.1 (batch) — $5/M, score 81.6 Gemini 3.7 Flash — $0.75/M, score 76.1 LongCat-2.0 — $0.3/M, score 45.3 Z.ai: GLM 5.1 — $0.966/M, score 55.8 Anthropic: Claude Opus 4.8 (batch) — $2.5/M, score 74.3 Mistral: Mistral Large 3 2512 — $0.5/M, score 20.1 DeepSeek V3.2 — $0.18/M, score 44.2 Anthropic: Claude Opus 4.7 — $5/M, score 73.6 Google: Gemini 3.5 Flash (batch) — $0.75/M, score 70.1 OpenAI: GPT-5.4 Nano (batch) — $0.1/M, score 56.1 Inception: Mercury 2 — $0.25/M, score 31.1 OpenAI: GPT-4o-mini (batch) — $0.075/M, score 11.4 Qwen: Qwen3.5-9B (batch) — $0.17/M, score 28.7 Gemini 3.6 Flash — $0.75/M, score 69.2 Gemma 4 26B A4B IT — $0.042/M, score 39.3 Claude Fable 5 — $10/M, score 76.5 Gemma 4 31B IT — $0.09/M, score 43.4 Z.ai: GLM 5.3 Flash — $0.15/M, score 71.5 OpenAI: GPT-3.5 Turbo (batch) — $0.25/M, score 10.7 Gemma 3 27B IT — $0.08/M, score 10.1 MiniMax: MiniMax M3 — $0.3/M, score 58.6 DeepSeek: DeepSeek V4 Pro 0813 (batch) — $0.66/M, score 68.8 Thinking Machines: Inkling Small (batch) — $0.5/M, score 52.9 Anthropic: Claude Fable 5.1 — $10/M, score 81.6 Google: Gemma 4 31B (batch) — $0.39/M, score 43.4 Qwen: Qwen3.8 2.4T A95B (batch) — $2/M, score 71.9 Mistral: Devstral 2 2512 — $0.4/M, score 31.3 MoonshotAI: Kimi K2.7 Code (batch) — $0.95/M, score 60.8 Inkling — $1.87/M, score 52.1 OpenAI: gpt-oss-20b (batch) — $0.05/M, score 20.7 Muse Spark 1.1 — $1.25/M, score 71.3 MiMo-V2.5 — $0.14/M, score 56.8 Google: Gemini 3.5 Flash Lite (batch) — $0.15/M, score 49.3 Kimi K2 Thinking — $0.4/M, score 21.0 Mistral: Mistral Medium 3.5 (batch) — $0.75/M, score 46.9 GPT-5.6 Luna — $0.2/M, score 71.4 Qwen: Qwen3.8 Max (0803) — $2/M, score 68.9 Mistral: Mistral Medium 3.1 (batch) — $0.2/M, score 20.5 GPT-5.1 — $1.25/M, score 49.4 Qwen: Qwen3.8 27B — $0.42/M, score 68.1 Google: Gemini 3.8 Flash (batch) — $0.375/M, score 76.3 Google: Gemini 3.7 Flash (batch) — $0.375/M, score 76.1 Mistral: Mistral Small 4 (batch) — $0.075/M, score 26.6 inclusionAI: Ling 3.0 Flash VL — $0.06/M, score 57.0 Z.ai: GLM 5.3 (batch) — $0.7/M, score 74.8 DeepSeek: DeepSeek V4 Flash 0731 (batch) — $0.11/M, score 69.1 OpenAI: GPT-5.5 (batch) — $2.5/M, score 74.9 MoonshotAI: Kimi K3 (batch) — $3/M, score 76.2 Inkling Small — $0.45/M, score 52.9 Anthropic: Claude Sonnet 5 (batch) — $1/M, score 71.5 Anthropic: Claude Fable 5 (batch) — $5/M, score 76.5 Nemotron 3 Super 120B A12B — $0.2/M, score 37.7 IBM: Granite 4.2 8B — $0.06/M, score 22.4 OpenAI: GPT-5 (batch) — $0.625/M, score 37.8 Google: Gemini 2.5 Pro (batch) — $0.625/M, score 33.3 GPT OSS 120B — $0.03/M, score 30.4 OpenAI: gpt-oss-120b (batch) — $0.15/M, score 30.4 OpenAI: GPT-4.1 Mini (batch) — $0.2/M, score 20.2 OpenAI: GPT-4.1 Nano (batch) — $0.05/M, score 11.1 SpaceXAI: Grok 4.6 — $2/M, score 76.8 DeepSeek-R1 — $0.7/M, score 24.6 DeepSeek: DeepSeek V3.1 Terminus — $0.27/M, score 43.5 OpenAI: GPT-6 Astra (batch) — $5/M, score 76.9 OpenAI: GPT-5.6 Terra (batch) — $1/M, score 76.7 Gemma 3 4B IT — $0.04/M, score 2.7 DeepSeek V4 Pro 0813 — $0.442/M, score 68.8 Z.ai: GLM 5.2 (batch) — $0.7/M, score 68.8 Google: Gemini 3.6 Flash (batch) — $0.375/M, score 69.2 GPT-6 Astra — $10/M, score 76.9 Nemotron 3 Nano 30B A3B — $0.05/M, score 14.4 Z.ai: GLM 5.3 — $1.4/M, score 74.8 Anthropic: Claude Opus 4.8 — $5/M, score 74.3 SpaceXAI: Grok 4.3 — $1.25/M, score 42.2 GPT-5.6 Terra — $2/M, score 76.7 MiniMax: MiniMax M3 (batch) — $0.3/M, score 58.6 Gemini 3.8 Flash — $0.75/M, score 76.3 NVIDIA: Nemotron 3 Ultra (batch) — $0.6/M, score 49.3 MiniMax: MiniMax M2.7 — $0.3/M, score 52.6 Kimi K2.6 — $0.95/M, score 61.8 Kimi K3 — $3/M, score 76.2 Claude Opus 5 — $5/M, score 78.0 Claude Opus 5 (batch) — $2.5/M, score 78.0 SpaceXAI: Grok 4.5 — $2/M, score 72.4 Mistral: Mistral Large 3 2512 (batch) — $0.25/M, score 20.1 Anthropic: Claude Opus 4.7 (batch) — $2.5/M, score 73.6 Anthropic: Claude Sonnet 4.5 — $3/M, score 52.1 Google: Gemini 3.1 Pro Preview (batch) — $1/M, score 68.8 Mistral: Mistral Medium 3.1 — $0.4/M, score 20.5 Thinking Machines: Inkling (batch) — $1/M, score 52.1 GPT-5.5 — $5/M, score 74.9 Anthropic: Claude Sonnet 4.6 — $3/M, score 63.0 Anthropic: Claude Sonnet 4.6 (batch) — $1.5/M, score 63.0 GPT-5 — $1.25/M, score 37.8 OpenAI: GPT-5 Mini (batch) — $0.125/M, score 15.6 Gemini 2.5 Pro — $1.25/M, score 33.3 inclusionAI: Ling 3.0 Flash — $0.021/M, score 50.6 SpaceXAI: Grok 4.3 (batch) — $1/M, score 42.2 Nemotron 3 Ultra 550B A55B — $0.5/M, score 49.3 OpenAI: GPT-5.6 Luna (batch) — $0.1/M, score 71.4 OpenAI: GPT-5.4 Mini (batch) — $0.375/M, score 56.1 Qwen: Qwen3.8 2.4T A95B — $2/M, score 71.9 OpenAI: GPT-5.6 Sol (batch) — $1/M, score 77.4 GPT-5.4 mini — $0.75/M, score 56.1 Kimi K2.7 Code — $0.95/M, score 60.8 Gemini 3.5 Flash Lite — $0.3/M, score 49.3 Hy3 preview — $0.066/M, score 58.8 Muse Spark 1.2 — $1.25/M, score 72.2 DeepSeek V4 Flash — $0.15/M, score 52.0 Nemotron 3.5 Lightning 30B A3B — $0.05/M, score 26.8 GPT-5.6 Sol — $4/M, score 77.4 GPT-4.1 nano — $0.1/M, score 11.1 GPT-5.4 — $2.5/M, score 71.1 GPT-4o mini — $0.15/M, score 11.4 GPT-5.4 nano — $0.2/M, score 56.1 GPT-3.5-turbo — $0.5/M, score 10.7 Solar Pro 4 — $0.3/M, score 52.7 Kimi K2.5 — $0.3/M, score 46.8 Trinity Large Thinking — $0.25/M, score 25.8 Qwen: Qwen3 30B A3B Thinking 2507 — $0.2/M, score 12.1 Z.ai: GLM 5.2 — $0.966/M, score 68.8 Qwen: Qwen3.7 Max — $1.475/M, score 66.0 SpaceXAI: Grok Build 0.1 — $1/M, score 51.5 Qwen: Qwen3.6 35B A3B — $0.1/M, score 41.9 Qwen: Qwen3.6 27B — $0.3/M, score 53.7 inclusionAI: Ling-2.6-flash — $0.01/M, score 25.3 Mistral: Mistral Small 4 — $0.15/M, score 26.6 Kwaipilot: KAT-Coder-Pro V2 — $0.3/M, score 59.5 Qwen: Qwen3.5-9B — $0.1/M, score 28.7 Qwen: Qwen3.5-35B-A3B — $0.312/M, score 37.0 Qwen: Qwen3.5-122B-A10B — $0.26/M, score 45.7 Upstage: Solar Pro 3 — $0.15/M, score 16.2 Z.ai: GLM 4.7 — $0.4/M, score 45.3 Amazon: Nova 2 Lite — $0.3/M, score 23.0 Mistral: Ministral 3 3B 2512 — $0.1/M, score 4.8 Google: Gemma 3n 4B — $0.06/M, score 3.2 Meta: Llama 4 Maverick — $0.2/M, score 16.3 OpenAI: o3 Mini High — $1.1/M, score 16.3 Meta: Llama 3.3 70B Instruct — $0.1/M, score 11.9 Meta: Llama 3.1 8B Instruct — $0.05/M, score 5.4 Nex AGI: Nex-N2-Pro — $0.25/M, score 59.1 Mistral: Mistral Medium 3.5 — $1.5/M, score 46.9 inclusionAI: Ring-2.6-1T — $0.075/M, score 42.8 IBM: Granite 4.1 8B — $0.05/M, score 9.5 Qwen: Qwen3.5 397B A17B — $0.55/M, score 48.2 Qwen: Qwen3 Coder Next — $0.12/M, score 36.2 Mistral: Ministral 3 14B 2512 — $0.2/M, score 14.4 Anthropic: Claude Haiku 4.5 — $1/M, score 43.9 Qwen: Qwen3 235B A22B Thinking 2507 — $0.23/M, score 22.1 Qwen: Qwen3 8B — $0.117/M, score 9.0 Qwen: Qwen3 14B — $0.227/M, score 13.8 Qwen: Qwen3 32B — $0.08/M, score 15.3 Meta: Llama 4 Scout — $0.1/M, score 8.2 DeepSeek: DeepSeek V3 0324 — $0.25/M, score 21.2 Cohere: Command A — $2.5/M, score 27.8 Step 3.7 Flash — $0.185/M, score 39.6 GPT OSS 20B Input price per million tokens (log scale) Index

The stepped line is the efficient frontier: at each price, the best score available for that money or less. A model sitting on it is not being beaten by anything cheaper. Price is log-scaled because listed rates span four orders of magnitude. Only models with both a listed price and a score on this benchmark can appear.

Catalog activity

Change log

Field-level changes detected between successful source imports.

Full change log
Max Output Tokens117964 → 32768
Price Completion0.13 → 0.1
Price Prompt0.03 → 0.02
Price Completion0.1 → 0.13
Max Output Tokens32768 → 117964
Price Prompt0.02 → 0.03
Max Output Tokens117964 → 32768
Price Completion0.13 → 0.1
Price Prompt0.03 → 0.02
Max Output Tokens32768 → 117964
Provenance

Sources & verification

Every figure on this page traces back to one of these records.

Methodology
Last verified
Sep 11, 2026
Status
Source-linked
Confidence
Medium
Catalog source
Models.dev
Models.devcatalog ↗QVAC documentationprovider documentation ↗Kenari documentationprovider documentation ↗Nvidia documentationprovider documentation ↗LMStudio documentationprovider documentation ↗Kilo Gateway documentationprovider documentation ↗Eden AI documentationprovider documentation ↗Weights & Biases documentationprovider documentation ↗IO.NET documentationprovider documentation ↗Deep Infra documentationprovider documentation ↗OpenRouter documentationprovider documentation ↗Merge Gateway documentationprovider documentation ↗
Public API

Use this record

Fetch the complete source-linked model record. No key, no account, no rate-limited tier.

API documentation
Endpoint
GET https://model.kyssta.lol/api/v1/models/openai/gpt-oss-20b
curl
curl "https://model.kyssta.lol/api/v1/models/openai/gpt-oss-20b"
Common questions

Frequently asked questions

Answered directly from the stored record — nothing here is generated beyond the catalog's own fields.

What is GPT OSS 20B?

Open GPT reasoning model for self-hosted agents and controllable deployments. It is published by OpenAI and catalogued here from Models.dev.

How much does GPT OSS 20B cost?

Listed input pricing starts at $0.02 per million tokens from Kilo Gateway, rising to $0.2 across 37 listed providers.

What is the context length of GPT OSS 20B?

GPT OSS 20B accepts up to 131.072K tokens of context and returns up to 32.768K output tokens.

Does GPT OSS 20B support tool calling and structured output?

Provider catalogs list support for tool calling, and reasoning.

Which providers serve GPT OSS 20B?

32 providers list this model: QVAC, Kenari, Nvidia, LMStudio, Kilo Gateway, Eden AI and 26 more.

Are the weights for GPT OSS 20B open?

Yes. The weights are published and downloadable from Hugging Face.

When was GPT OSS 20B released?

The catalog records a release date of 2025-08-05, last verified Sep 11, 2026.

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