Grok Build 0.1 vs Grok 4.20 (Reasoning)
Benchmarks, API Token Pricing, Context Window & Speed Comparison
Related topics (12)
Grok Build 0.1 di xAI e Grok 4.20 (Reasoning) di xAI sono due modelli di IA di riferimento. Grok Build 0.1 offre una finestra di contesto di 256K token a $1.00/$2.00 per milione di token, mentre Grok 4.20 (Reasoning) mette a disposizione 1M token di contesto a $3.00/$15.00 per milione di token. Di seguito analizziamo benchmark, latenza e costi.
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Grok Build 0.1
Leader in Programmazione e CodiceGrok Build 0.1 di xAI è un modello di IA progettato per l’ingegneria del software autonoma, il refactoring multi-file e il debug avanzato, con finestra di contesto da 256K, velocità di 120 token/s, indice di intelligenza di 65/100 e tariffa
$1.00 / 1M
$2.00 / 1M
256K tokens
69.8%
Grok 4.20 (Reasoning)
Motore di Ragionamento ProfondoGrok 4.20 (Reasoning) di xAI è un modello di IA progettato per il ragionamento logico profondo, la matematica avanzata e l’analisi scientifica, con finestra di contesto da 1M, velocità di 95 token/s, indice di intelligenza di 68/100 e tarif
$3.00 / 1M
$15.00 / 1M
1M tokens
68.2%
Differenze Chiave a Colpo d’Occhio
- Grok Build 0.1 is 5.2x cheaper for API usage (input + output tokens combined).
- Grok 4.20 (Reasoning) has a larger context window (1M vs 256K tokens).
- Grok Build 0.1 is faster at 120 tok/s vs 95 tok/s.
- Grok Build 0.1 leads on SWE-bench coding (69.8% vs 68.2%).
| Feature | Grok Build 0.1 | Grok 4.20 (Reasoning) |
|---|---|---|
Intelligence Index Composite reasoning & knowledge score (0-100) | 65 | 68 |
Provider | xAI | xAI |
Input Price Cost per million input tokens | $1.00 / 1M | $3.00 / 1M |
Output Price Cost per million output tokens | $2.00 / 1M | $15.00 / 1M |
Blended Price Weighted 7:2:1 cache:input:output per 1M | $0.57 / 1M | $2.63 / 1M |
Context Window Maximum input + output tokens | 256K tokens~384 A4 pages of text | 1M tokens~1,500 A4 pages of text |
Max Output Tokens Per single request | 66K | 66K |
Throughput Speed Tokens generated per second | 120 tok/s | 95 tok/s |
SWE-bench Verified Real-world software engineering | 69.8% | 68.2% |
GPQA Diamond Graduate-level reasoning | 68.2% | 72.8% |
Cached Input Price Prompt caching discount per 1M tokens | $0.25 / 1M | $0.75 / 1M |
Chi vince in ogni categoria?
At-a-glance decision frameworkPunteggi Benchmark Verificati
Official evaluation metrics verified by independent third-party research labs.
Industry benchmark evaluating real-world GitHub issue resolution and multi-file debugging.
Challenging questions created by domain experts to test complex PhD-level reasoning.
Hardened reasoning and academic knowledge benchmark with reduced lucky-guess probability.
Crowdsourced human preference evaluation based on blind, head-to-head model battles.
Extremely difficult, closed-ended questions spanning the frontier of human expert knowledge.
Autonomous multi-step tasks executed inside a real command-line terminal environment.
Research-grade coding problems drawn from real scientific and numerical workloads.
Contamination-free competitive programming problems collected continuously over time.
American Invitational Mathematics Examination — multi-step Olympiad-level reasoning.
Accuracy when reasoning over very large inputs that fill the model context window.
Tokens emitted per second during active generation streaming.
Latenza e Tempo di Risposta
Time to first token (TTFT) and estimated end-to-end response time for a typical 500-token response.
Simulatore Interattivo dei Costi Token
Adjust sliders to calculate projected monthly cloud API spending with prompt caching discounts.
Grok Build 0.1 · Strengths & Key Advantages
- Finestra di contesto da 256K con capacità massima di output fino a 66K token (SWE-bench Verified 69.8% · GPQA Diamond 68.2%)
- Throughput elevato di 120 token/secondo con latenza al primo token (TTFT) di soli 550 ms
- Economia API competitiva ($1/$2 per 1M di token) con supporto per prompt caching, tool calling e output JSON strutturati
Considerations & Trade-offs
- Modello cloud proprietario chiuso; non consente il download locale dei pesi per l’esecuzione offline
- Nelle dimostrazioni scientifiche più estreme, i modelli di ragionamento pesante dedicati offrono maggiore profondità
Grok 4.20 (Reasoning) · Strengths & Key Advantages
- Finestra di contesto da 1M con capacità massima di output fino a 66K token (SWE-bench Verified 68.2% · GPQA Diamond 72.8%)
- Throughput elevato di 95 token/secondo con latenza al primo token (TTFT) di soli 980 ms
- Economia API competitiva ($3/$15 per 1M di token) con supporto per prompt caching, tool calling e output JSON strutturati
Considerations & Trade-offs
- Modello cloud proprietario chiuso; non consente il download locale dei pesi per l’esecuzione offline
- Per volumi di traffico elevati in produzione si consiglia di attivare il prompt caching e la Batch API
Token Use & Task Economics
Estimated cost and token consumption to complete one representative agentic task.
| Metric | Grok Build 0.1 | Grok 4.20 (Reasoning) |
|---|---|---|
Cost per Task Estimated USD to finish one task | $0.95 | $1.45 |
Output Tokens / Task Tokens generated per task | 42K | 45K |
Reasoning Tokens / Task Thinking tokens burned per task | 18K | 28K |
Specifiche Tecniche
Architecture, release timeline, capabilities, and modalities.
| Feature | Grok Build 0.1 | Grok 4.20 (Reasoning) |
|---|---|---|
| Official API Model ID (SDK) | grok-build-0-1-latest | grok-4-20-reasoning-latest |
| API Protocol | xAI REST API (OpenAI-Compatible) | xAI REST API (OpenAI-Compatible) |
| Release Date | 2026-04 | 2026-03 |
| Knowledge Cutoff | January 2026 | November 2025 |
| Architecture | Code-Specialized Autoregressive Transformer | Colossus-Scale Reasoning Sparse MoE |
| Parameters | Confidential | Confidential |
| Enterprise Rate Limits (RPM / TPM) | 5,000 – 15,000 RPM (Production Tier) · 800,000 – 2,000,000 TPM | 5,000 – 15,000 RPM (Production Tier) · 4,000,000 – 10,000,000 TPM |
| Long-Context Tier (>128K/200K) | Flat rate ($1/1M in) across full 256K window | Flat rate ($3/1M in) across full 1000K window |
| Prompt Cache Policy & TTL | Cached input at $0.25/1M tokens | Cached input at $0.75/1M tokens |
| Computer Use / GUI Agent | API / 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 Calling | Native MCP Client/Server ready · Parallel function calling · 100% Strict JSON Schema | Native MCP Client/Server ready · Parallel function calling · 100% Strict JSON Schema |
| Web Search Grounding & Sandbox | Real-time Web & X (Twitter) Search Grounding + Code Execution | Real-time Web & X (Twitter) Search Grounding + Code Execution |
| Official Fine-Tuning Support | API Prompt Engineering & RAG Distillation | API Prompt Engineering & RAG Distillation |
| Multimodal Token Billing | Text BPE (~4 chars/token) · Vision (~258–765 tokens per image tile) | Text BPE (~4 chars/token) · Vision (~258–765 tokens per image tile) |
| Quantization & Min GPU VRAM | Cloud-Hosted Proprietary (FP8 / BF16 Tensor Core Cluster) · Zero Local VRAM Required (100% Serverless Cloud API) | Cloud-Hosted Proprietary (FP8 / BF16 Tensor Core Cluster) · Zero Local VRAM Required (100% Serverless Cloud API) |
| Safety & Frontier Classification | xAI Production Safety & Alignment Verified | xAI Production Safety & Alignment Verified |
| Enterprise Compliance (ZDR/HIPAA/SOC2) | SOC2 Type II · GDPR · Zero Data Retention (ZDR) & HIPAA BAA Available on Enterprise Tier | SOC2 Type II · GDPR · Zero Data Retention (ZDR) & HIPAA BAA Available on Enterprise Tier |
| Input Modalities | text, vision | text, vision |
| Output Modalities | text | text |
Grok Build 0.1 vs Grok 4.20 (Reasoning): Risposte Rapide (FAQ)
Which is more intelligent, Grok Build 0.1 or Grok 4.20 (Reasoning)?
Grok 4.20 (Reasoning) is more intelligent. It scores 68 compared with 65 on the composite Intelligence Index.
Which model is faster?
Grok Build 0.1 is faster, generating 120 tokens per second compared with 95 tokens per second.
Which model is cheaper to run?
Grok Build 0.1 is cheaper at $0.57 per 1M tokens blended, compared with $2.63 (7:2:1 cache:input:output ratio).
Which model has lower latency?
Grok Build 0.1 has lower latency, with a time to first token of 0.55s compared with 0.98s.
Which model has a larger context window?
Grok 4.20 (Reasoning) has a larger context window, supporting 1M tokens compared with 256K tokens.
Verdetto
Sia Grok Build 0.1 (Ideale per l’ingegneria del software autonoma, il refactoring multi-file e il debug avanzato, sistemi RAG aziendali e integrazioni API scalabili.) sia Grok 4.20 (Reasoning) (Ideale per il ragionamento logico profondo, la matematica avanzata e l’analisi scientifica, sistemi RAG aziendali e integrazioni API scalabili.) eccellono in produzione: Grok 4.20 (Reasoning) guida nei benchmark di ragionamento e programmazione, Grok Build 0.1 garantisce una generazione più rapida e Grok Build 0.1 offre il miglior rapporto qualità-prezzo per carichi API elevati.
Domande Frequenti (FAQ)
Quale modello è migliore per coding e ragionamento, Grok Build 0.1 o Grok 4.20 (Reasoning)?+
Nell’indice di intelligenza composito e nei benchmark di programmazione prevale Grok 4.20 (Reasoning). Consulta i punteggi SWE-bench e GPQA qui sopra per tutti i dettagli.
Qual è la differenza di prezzo API tra Grok Build 0.1 e Grok 4.20 (Reasoning)?+
Grok Build 0.1 costa $1.00 / $2.00 per milione di token di input/output, mentre Grok 4.20 (Reasoning) costa $3.00 / $15.00. Nel costo combinato, Grok Build 0.1 risulta più economico.
Quale modello ha la finestra di contesto più ampia e la velocità maggiore?+
Grok Build 0.1 supporta 256K token di contesto contro 1M token di Grok 4.20 (Reasoning), mentre Grok Build 0.1 offre una velocità di generazione superiore.
Understand key metrics like context window, token pricing, reasoning mode, and SWE-bench scores in our comprehensive AI glossary.
Related reading
- Claude Opus 4.6 vs Grok Build 0.1: Confronto Benchmark, Prezzi API e Velocità (2026)Confronta
- Grok 4.20 (Reasoning) vs Claude Opus 5.5: Confronto Benchmark, Prezzi API e Velocità (2026)Confronta
- Grok 4.20 (Reasoning) vs DeepSeek R1: Confronto Benchmark, Prezzi API e Velocità (2026)Confronta
- Grok 4.20 (Reasoning) vs Gemini 4 Argon: Confronto Benchmark, Prezzi API e Velocità (2026)Confronta
- Grok 4.20 (Reasoning) vs o3: Confronto Benchmark, Prezzi API e Velocità (2026)Confronta
- Grok 4.3 vs Grok Build 0.1: Confronto Benchmark, Prezzi API e Velocità (2026)Confronta
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 xAI e xAI, schede di sistema e benchmark indipendenti (2026).