OpenAI: gpt-oss-20b
Released Aug 5, 2025text→text
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gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license. It uses a Mixture-of-Experts (MoE) architecture with 3.6B active parameters per forward pass, optimized for...
Best overall rank
#229
▼ 2 vs 7d ago
Total arena votes
63,102
Across 28 (subset, category) entries
Providers on OR
13
Amazon Bedrock + others
First seen
2026-05-08
72 days tracked
Trend
Pricing
Per token
- Input (per 1M)
- $0.030
- Output (per 1M)
- $0.130
- Cache Read (per 1M)
- $0.030
Capabilities
Modality
text->textContext
131K tokens
Tokenizer
GPT
Knowledge cutoff
2024-06-30
Max output
131K tokens
Moderation
Unmoderated
Hugging Face
Supported parameters
frequency_penalty
include_reasoning
logit_bias
logprobs
max_tokens
min_p
presence_penalty
reasoning
reasoning_effort
repetition_penalty
response_format
seed
stop
structured_outputs
temperature
tool_choice
tools
top_k
top_logprobs
top_p
Providers
| Provider | Region / Tag | Context | Input/M | Output/M | Uptime 1d | Latency | Quant | Cache |
|---|---|---|---|---|---|---|---|---|
| Amazon Bedrock | amazon-bedrock/eu-west-1 | 131K | $0.070 | $0.150 | 100.00% | - | - | - |
| Groq | groq | 131K | $0.075 | $0.300 | 99.92% | - | - | - |
| DeepInfra | deepinfra/bf16 | 131K | $0.030 | $0.140 | 99.89% | - | bf16 | - |
| WandB | wandb/fp4 | 131K | $0.030 | $0.130 | 99.69% | - | fp4 | - |
| Fireworks | fireworks | 131K | $0.070 | $0.300 | 99.61% | - | - | - |
| Novita | novita/fp4 | 131K | $0.040 | $0.150 | 99.31% | - | fp4 | - |
| Amazon Bedrock | amazon-bedrock | 131K | $0.070 | $0.150 | 99.30% | - | - | - |
| SiliconFlow | siliconflow/fp8 | 131K | $0.040 | $0.180 | 98.43% | - | fp8 | - |
| Phala | phala | 131K | $0.040 | $0.150 | 97.45% | - | - | - |
| Together | together | 131K | $0.050 | $0.200 | 97.11% | - | - | - |
| DekaLLM | dekallm/bf16 | 131K | $0.029 | $0.140 | 94.62% | - | bf16 | - |
google-vertex/us-central1 | 131K | $0.070 | $0.250 | 80.14% | - | - | - | |
| Parasail | parasail/fp4 | 131K | $0.040 | $0.200 | 70.36% | - | fp4 | - |
Per-category ranks
Text
| Rank | Category | Variant | Trend | Elo | Votes |
|---|---|---|---|---|---|
| #151 | Korean | - | 1292 | 218 | |
| #152 | Japanese | - | 1263 | 233 | |
| #188 | Math | - | 1336 | 679 | |
| #190 | Industry Mathematical | - | 1330 | 583 | |
| #191 | Industry Medicine And Healthcare | - | 1352 | 561 | |
| #191 | Polish | - | 1277 | 780 | |
| #193 | Spanish | - | 1305 | 253 | |
| #196 | Chinese | - | 1348 | 488 | |
| #202 | Expert | - | 1318 | 490 | |
| #205 | Coding | - | 1369 | 2,168 | |
| #205 | Industry Business And Management And Financial Operations | - | 1322 | 1,849 | |
| #206 | German | - | 1270 | 208 | |
| #208 | Industry Software And It Services | - | 1358 | 3,707 | |
| #216 | Non English | - | 1269 | 5,546 | |
| #221 | Russian | - | 1301 | 605 | |
| #224 | Hard Prompts English | - | 1339 | 2,447 | |
| #226 | Exclude Ties | - | 1262 | 7,779 | |
| #228 | Hard Prompts | - | 1323 | 4,797 | |
| #229 | Overall | - | 1317 | 10,622 | |
| #230 | English | - | 1331 | 5,064 | |
| #230 | Industry Life And Physical And Social Science | - | 1328 | 1,683 | |
| #240 | Industry Legal And Government | - | 1322 | 694 | |
| #242 | Multi Turn | - | 1292 | 1,836 | |
| #244 | Longer Query | - | 1301 | 2,090 | |
| #246 | Instruction Following | - | 1281 | 2,554 | |
| #252 | Industry Entertainment And Sports And Media | - | 1256 | 1,746 | |
| #255 | Industry Writing And Literature And Language | - | 1274 | 2,179 | |
| #266 | Creative Writing | - | 1238 | 1,243 |