Head-to-Head Model Comparison

GPT-OSS 20B vs Llama 3.1 8B

Benchmarks, API Token Pricing, Context Window & Speed Comparison

Verificato dal team di ricerca di GetInfoUsUltima verifica: October 2026Politica editoriale
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AI CompareAI BenchmarkToken PricingModel CostModel SpecsSWE-bench CodingModel VersusWhich AI ModelLLM Speed & LatencyReasoning ModelsExtended ThinkingPrompt Caching ROI
GPT-OSS 20B vs Llama 3.1 8B: Benchmarks, Pricing & Speed Comparison

GPT-OSS 20B di OpenAI e Llama 3.1 8B di Meta sono due modelli di IA di riferimento. GPT-OSS 20B offre una finestra di contesto di 131.1K token a $0.10/$0.50 per milione di token, mentre Llama 3.1 8B mette a disposizione 128K token di contesto a $0.00/$0.00 per milione di token. Di seguito analizziamo benchmark, latenza e costi.

Confronto Diretto (VS)

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GPT-OSS 20B

Ragionamento a Pesi Aperti

GPT-OSS 20B di OpenAI è un modello di IA progettato per il ragionamento Chain-of-Thought a pesi aperti ad alta efficienza algoritmica, con finestra di contesto da 131K, velocità di 160 token/s, indice di intelligenza di 46/100 e tariffa di

Intelligence Index46 / 100
Input Token:

$0.10 / 1M

Output Token:

$0.50 / 1M

Context Window:

131.1K tokens

SWE-bench Verified:

32.5%

Meta

Llama 3.1 8B

Modello Base a Pesi Aperti

Llama 3.1 8B di Meta è un modello di IA progettato per il self-hosting su infrastruttura privata, il fine-tuning e la piena sovranità dei dati, con finestra di contesto da 128K, velocità di 160 token/s, indice di intelligenza di 60/100 e ta

Intelligence Index60 / 100
Input Token:

$0.00 / 1M

Output Token:

$0.00 / 1M

Context Window:

128K tokens

SWE-bench Verified:

22%

Differenze Chiave a Colpo d’Occhio

  • Llama 3.1 8B is 1.0x cheaper for API usage (input + output tokens combined).
  • GPT-OSS 20B has a larger context window (131K vs 128K tokens).
  • Llama 3.1 8B is faster at 160 tok/s vs 160 tok/s.
  • GPT-OSS 20B leads on SWE-bench coding (32.5% vs 22.0%).
Need definitions for token pricing, context, or benchmarks?Explore AI Glossary →
FeatureGPT-OSS 20BLlama 3.1 8B
Intelligence Index
Composite reasoning & knowledge score (0-100)
4660
Provider
OpenAIMeta
Input Price
Cost per million input tokens
$0.10 / 1M$0.00 / 1M
Output Price
Cost per million output tokens
$0.50 / 1M$0.00 / 1M
Blended Price
Weighted 7:2:1 cache:input:output per 1M
$0.08 / 1M$0.00 / 1M
Context Window
Maximum input + output tokens
131.1K tokens~197 A4 pages of text128K tokens~192 A4 pages of text
Max Output Tokens
Per single request
33K8K
Throughput Speed
Tokens generated per second
160 tok/s160 tok/s
SWE-bench Verified
Real-world software engineering
32.5%22%
GPQA Diamond
Graduate-level reasoning
55%38%
Cached Input Price
Prompt caching discount per 1M tokens
$0.01 / 1M$0.00 / 1M

Chi vince in ogni categoria?

At-a-glance decision framework
Coding
GPT-OSS 20B
+10.5% SWE-bench lead
Cost
Llama 3.1 8B
1.0x cheaper monthly runtime
Speed
Llama 3.1 8B
+0% faster generation
Context
GPT-OSS 20B
131.1K tokens window

Punteggi Benchmark Verificati

Official evaluation metrics verified by independent third-party research labs.

GPT-OSS 20BLlama 3.1 8B
SWE-bench Verified (Autonomous Coding)

Industry benchmark evaluating real-world GitHub issue resolution and multi-file debugging.

32.5%vs22%
GPQA Diamond (Doctorate-Level Science & Math)

Challenging questions created by domain experts to test complex PhD-level reasoning.

55%vs38%
MMLU-Pro (Multi-task Language Understanding)

Hardened reasoning and academic knowledge benchmark with reduced lucky-guess probability.

72.5%vs65%
LMSYS Chatbot Arena Elo

Crowdsourced human preference evaluation based on blind, head-to-head model battles.

1288ptsvs1245pts
Humanity's Last Exam (Frontier Expert Knowledge)

Extremely difficult, closed-ended questions spanning the frontier of human expert knowledge.

7.2%vsN/A
Terminal-Bench (Agentic Coding & Terminal Use)

Autonomous multi-step tasks executed inside a real command-line terminal environment.

22%vsN/A
SciCode (Scientific Computing)

Research-grade coding problems drawn from real scientific and numerical workloads.

24.5%vsN/A
LiveCodeBench (Competitive Coding)

Contamination-free competitive programming problems collected continuously over time.

46%vsN/A
AIME (Advanced Math Competition)

American Invitational Mathematics Examination — multi-step Olympiad-level reasoning.

72%vsN/A
Long-Context Reasoning

Accuracy when reasoning over very large inputs that fill the model context window.

63%vsN/A
Generation Speed (Throughput)

Tokens emitted per second during active generation streaming.

160 tok/s vs160 tok/s

Latenza e Tempo di Risposta

Time to first token (TTFT) and estimated end-to-end response time for a typical 500-token response.

Time to First Token (TTFT)Lower is better
GPT-OSS 20B0.26s
Llama 3.1 8B0.22s
Est. End-to-End Response (500 tokens)TTFT + generation time
GPT-OSS 20B3.38s
Llama 3.1 8B3.35s

Simulatore Interattivo dei Costi Token

Adjust sliders to calculate projected monthly cloud API spending with prompt caching discounts.

100K / day
10K500K1M
30K / day
5K150K300K
50% cached
0% (Cold)50%90% (Warm)
GPT-OSS 20B Monthly API Bill
$0.61 / month
$0.1/1M in · $0.5/1M out
Llama 3.1 8B Monthly API Bill
$0.00 / month
$0/1M in · $0/1M out
Llama 3.1 8B saves approximately $0.61 / month (100%) under this workload.1.0x Savings

GPT-OSS 20B · Strengths & Key Advantages

  • Finestra di contesto da 131K con capacità massima di output fino a 33K token (SWE-bench Verified 32.5% · GPQA Diamond 55%)
  • Throughput elevato di 160 token/secondo con latenza al primo token (TTFT) di soli 260 ms
  • Pesi aperti (21B (3.6B MoE)) pronti per il self-hosting locale o su cloud privato tramite vLLM, SGLang o Ollama
Considerations & Trade-offs
  • Richiede server GPU dedicati con sufficiente memoria VRAM per l’esecuzione locale a piena precisione
  • Nelle dimostrazioni scientifiche più estreme, i modelli di ragionamento pesante dedicati offrono maggiore profondità

Llama 3.1 8B · Strengths & Key Advantages

  • Finestra di contesto da 128K con capacità massima di output fino a 8K token (SWE-bench Verified 22% · GPQA Diamond 38%)
  • Throughput elevato di 160 token/secondo con latenza al primo token (TTFT) di soli 220 ms
  • Pesi aperti (8B) pronti per il self-hosting locale o su cloud privato tramite vLLM, SGLang o Ollama
Considerations & Trade-offs
  • Richiede server GPU dedicati con sufficiente memoria VRAM per l’esecuzione locale a piena precisione
  • Nelle dimostrazioni scientifiche più estreme, i modelli di ragionamento pesante dedicati offrono maggiore profondità

Token Use & Task Economics

Estimated cost and token consumption to complete one representative agentic task.

MetricGPT-OSS 20BLlama 3.1 8B
Cost per Task
Estimated USD to finish one task
$0.09$0.00
Output Tokens / Task
Tokens generated per task
40K4K
Reasoning Tokens / Task
Thinking tokens burned per task
18K0K

Specifiche Tecniche

Architecture, release timeline, capabilities, and modalities.

FeatureGPT-OSS 20BLlama 3.1 8B
Official API Model ID (SDK)gpt-oss-20bmeta-llama/Llama-3.1-8B
API ProtocolOpenAI Responses API & Chat Completions v1OpenAI-Compatible REST / vLLM / SGLang / HuggingFace TGI
Release Date2025-082024-07
Knowledge CutoffJune 2024December 2023
ArchitectureSparse MoE transformer with reasoningDense auto-regressive multilingual transformer
Parameters21B (3.6B active MoE)8B
Enterprise Rate Limits (RPM / TPM)Unlimited (Hardware-bound on self-hosted GPU) / 10,000 RPM Cloud · Unlimited local throughput / 10M+ TPM Managed CloudUnlimited (Hardware-bound on self-hosted GPU) / 10,000 RPM Cloud · Unlimited local throughput / 10M+ TPM Managed Cloud
Long-Context Tier (>128K/200K)Flat rate ($0.1/1M in) across full 131K windowFree across full context window (only KV-cache VRAM scales)
Prompt Cache Policy & TTLAutomatic prefix caching at $0.01/1M (no extra cache-write fee)Automatic prefix KV-caching in vLLM / SGLang (0 cost)
Computer Use / GUI AgentAPI / CLI Tool-Use & DOM Agent ready (no raw pixel desktop click loop)API / CLI Tool-Use & DOM Agent ready (no raw pixel desktop click loop)
MCP & Parallel Tool CallingNative MCP Client/Server ready · Parallel function calling · 100% Strict JSON SchemaNative MCP Client/Server ready · Parallel function calling · 100% Strict JSON Schema
Web Search Grounding & SandboxNative Web Search tool + Hosted Code Interpreter & File Search RAGSupported via external Tavily/Exa Search & E2B/Docker Sandbox tools
Official Fine-Tuning SupportFull Weights SFT, LoRA, QLoRA, DPO & GRPO RL (Unsloth / Axolotl / Llama-Factory)Full Weights SFT, LoRA, QLoRA, DPO & GRPO RL (Unsloth / Axolotl / Llama-Factory)
Multimodal Token BillingText BPE (~4 chars/token)Text BPE (~4 chars/token)
Quantization & Min GPU VRAMBF16 / FP16, FP8 Dynamic, INT4 AWQ / GPTQ, GGUF (Q4_K_M / Q8_0) · 13 GB VRAM (4-bit Quantized) · 45 GB VRAM (Native BF16)BF16 / FP16, FP8 Dynamic, INT4 AWQ / GPTQ, GGUF (Q4_K_M / Q8_0) · 5 GB VRAM (4-bit Quantized) · 17 GB VRAM (Native BF16)
Safety & Frontier ClassificationOpenAI Preparedness Framework Audited & System Card PublishedOpen-Weights System Card + Customizable Guardrail Layer (Llama Guard / ShieldGemma)
Enterprise Compliance (ZDR/HIPAA/SOC2)100% Air-Gapped On-Premises / Private VPC · Full HIPAA, GDPR & SOC2 Control100% Air-Gapped On-Premises / Private VPC · Full HIPAA, GDPR & SOC2 Control
Input Modalitiestexttext
Output Modalitiestexttext

GPT-OSS 20B vs Llama 3.1 8B: Risposte Rapide (FAQ)

Which is more intelligent, GPT-OSS 20B or Llama 3.1 8B?

Llama 3.1 8B is more intelligent. It scores 60 compared with 46 on the composite Intelligence Index.

Which model is cheaper to run?

Llama 3.1 8B is cheaper at $0.00 per 1M tokens blended, compared with $0.08 (7:2:1 cache:input:output ratio).

Which model has lower latency?

Llama 3.1 8B has lower latency, with a time to first token of 0.22s compared with 0.26s.

Which model has a larger context window?

GPT-OSS 20B has a larger context window, supporting 131.1K tokens compared with 128K tokens.

Verdetto

Sia GPT-OSS 20B (Ideale per il ragionamento Chain-of-Thought a pesi aperti ad alta efficienza algoritmica, sistemi RAG aziendali e integrazioni API scalabili.) sia Llama 3.1 8B (Ideale per il self-hosting su infrastruttura privata, il fine-tuning e la piena sovranità dei dati, sistemi RAG aziendali e integrazioni API scalabili.) eccellono in produzione: Llama 3.1 8B guida nei benchmark di ragionamento e programmazione, GPT-OSS 20B garantisce una generazione più rapida e Llama 3.1 8B offre il miglior rapporto qualità-prezzo per carichi API elevati.

Domande Frequenti (FAQ)

Quale modello è migliore per coding e ragionamento, GPT-OSS 20B o Llama 3.1 8B?+

Nell’indice di intelligenza composito e nei benchmark di programmazione prevale Llama 3.1 8B. Consulta i punteggi SWE-bench e GPQA qui sopra per tutti i dettagli.

Qual è la differenza di prezzo API tra GPT-OSS 20B e Llama 3.1 8B?+

GPT-OSS 20B costa $0.10 / $0.50 per milione di token di input/output, mentre Llama 3.1 8B costa $0.00 / $0.00. Nel costo combinato, Llama 3.1 8B risulta più economico.

Quale modello ha la finestra di contesto più ampia e la velocità maggiore?+

GPT-OSS 20B supporta 131.1K token di contesto contro 128K token di Llama 3.1 8B, mentre GPT-OSS 20B offre una velocità di generazione superiore.

AI Terminology & Guide
Explore Glossary →

Understand key metrics like context window, token pricing, reasoning mode, and SWE-bench scores in our comprehensive AI glossary.

Benchmark scores, token prices, and rate limits evolve rapidly as AI labs release model updates. Always verify current specifications and pricing on the official provider documentation.

Fonti ufficiali: Documentazione API ufficiale di OpenAI e Meta, schede di sistema e benchmark indipendenti (2026).