Claude Opus 4 vs GPT-6 Astra
Benchmarks, API Token Pricing, Context Window & Speed Comparison
Related topics (4)
Compare Claude Opus 4 by Anthropic against GPT-6 Astra by OpenAI across real-world coding, reasoning, token economics, and latency.
Changez et Comparez les Modèles
Select any AI models from our verified benchmark database to generate live side-by-side matrices.
Live comparison: no in-depth editorial review has been published for this pair yet.
Claude Opus 4
Moteur de Raisonnement ProfondClaude Opus 4 de Anthropic est un modèle d’IA conçu pour le raisonnement logique profond, les mathématiques formelles et l’analyse scientifique, offrant une fenêtre de contexte de 200K, une vitesse de 42 tokens/s, un indice d’intelligence d
$15.00 / 1M
$75.00 / 1M
200K tokens
72.5%
GPT-6 Astra
Modèle Audio et Vocal NatifGPT-6 Astra de OpenAI est un modèle d’IA conçu pour la synthèse vocale naturelle, la transcription audio et le dialogue parlé en temps réel, offrant une fenêtre de contexte de 272K, une vitesse de 100 tokens/s, un indice d’intelligence de 9
$10.00 / 1M
$50.00 / 1M
272K tokens
82.4%
Différences Clés en un Coup d’Œil
- GPT-6 Astra is 1.5x cheaper for API usage (input + output tokens combined).
- GPT-6 Astra has a larger context window (272K vs 200K tokens).
- GPT-6 Astra is faster at 100 tok/s vs 42 tok/s.
- GPT-6 Astra leads on SWE-bench coding (82.4% vs 72.5%).
| Caractéristique | Claude Opus 4 | GPT-6 Astra |
|---|---|---|
Intelligence Index Composite reasoning & knowledge score (0-100) | 61 | 96 |
Provider | Anthropic | OpenAI |
Input Price Cost per million input tokens | $15.00 / 1M | $10.00 / 1M |
Output Price Cost per million output tokens | $75.00 / 1M | $50.00 / 1M |
Blended Price Weighted 7:2:1 cache:input:output per 1M | $11.55 / 1M | $7.70 / 1M |
Context Window Maximum input + output tokens | 200K tokens~300 A4 pages of text | 272K tokens~408 A4 pages of text |
Max Output Tokens Per single request | 32K | 128K |
Throughput Speed Tokens generated per second | 42 tok/s | 100 tok/s |
SWE-bench Verified Real-world software engineering | 72.5% | 82.4% |
GPQA Diamond Graduate-level reasoning | 73.8% | 80.9% |
Cached Input Price Prompt caching discount per 1M tokens | $1.50 / 1M | $1.00 / 1M |
Qui gagne où ?
At-a-glance decision frameworkScores de Benchmarks Vérifiés
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.
Latence et Temps de Réponse
Time to first token (TTFT) and estimated end-to-end response time for a typical 500-token response.
Simulateur Interactif de Coût de Tokens
Adjust sliders to calculate projected monthly cloud API spending with prompt caching discounts.
Claude Opus 4 · Strengths & Key Advantages
- Fenêtre de contexte de 200K et capacité de sortie maximale de 32K tokens (SWE-bench Verified 72.5% · GPQA Diamond 73.8%)
- Débit rapide de 42 tokens/seconde avec une latence au premier token (TTFT) de 1800 ms
- Tarification API optimisée ($15/$75 par million de tokens) avec prise en charge du cache de prompts et des schémas JSON stricts
Considerations & Trade-offs
- Modèle cloud propriétaire ne permettant pas le téléchargement local des poids sur serveur isolé
- Pour les charges à très fort volume, l’activation du cache de prompts et de l’API Batch est recommandée
GPT-6 Astra · Strengths & Key Advantages
- Fenêtre de contexte de 272K et capacité de sortie maximale de 128K tokens (SWE-bench Verified 82.4% · GPQA Diamond 80.9%)
- Débit rapide de 100 tokens/seconde avec une latence au premier token (TTFT) de 950 ms
- Tarification API optimisée ($10/$50 par million de tokens) avec prise en charge du cache de prompts et des schémas JSON stricts
Considerations & Trade-offs
- Modèle cloud propriétaire ne permettant pas le téléchargement local des poids sur serveur isolé
- Pour les charges à très fort volume, l’activation du cache de prompts et de l’API Batch est recommandée
Token Use & Task Economics
Estimated cost and token consumption to complete one representative agentic task.
| Metric | Claude Opus 4 | GPT-6 Astra |
|---|---|---|
Cost per Task Estimated USD to finish one task | $16.46 | $2.15 |
Output Tokens / Task Tokens generated per task | 72K | 58K |
Reasoning Tokens / Task Thinking tokens burned per task | 37K | 32K |
Spécifications Techniques
Architecture, release timeline, capabilities, and modalities.
| Caractéristique | Claude Opus 4 | GPT-6 Astra |
|---|---|---|
| Official API Model ID (SDK) | claude-opus-4-20250501 | gpt-6-astra |
| API Protocol | Anthropic Messages API + AWS Bedrock + Vertex AI | OpenAI Responses API & Chat Completions v1 |
| Release Date | 2025-05 | 2026-09 |
| Knowledge Cutoff | March 2025 | June 2026 |
| Architecture | Dense Frontier Reasoning Transformer | Omni-Adaptive Autoregressive with Dynamic CoT |
| Parameters | Confidential | Confidential |
| Enterprise Rate Limits (RPM / TPM) | 4,000 – 10,000 RPM (Tier 4 + Priority Tier) · 800,000 – 2,000,000 TPM | 10,000 – 30,000 RPM (Tier 5 Enterprise) · 800,000 – 2,000,000 TPM |
| Long-Context Tier (>128K/200K) | Standard rate up to 200K tokens; 2x input/output tier above 200K tokens | Flat rate ($10/1M in) across full 272K window |
| Prompt Cache Policy & TTL | $1.5/1M cached read (90% off); 5-min default & 1-hour extended TTL | Automatic prefix caching at $1/1M (no extra cache-write fee) |
| Computer Use / GUI Agent | Supported (Screen coordinate grounding, browser & desktop GUI action loops) | Supported (Screen coordinate grounding, browser & desktop GUI action loops) |
| 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 | Native Web Search Citations + Code Execution Tool + MCP Connectors | Native Web Search tool + Hosted Code Interpreter & File Search RAG |
| Official Fine-Tuning Support | Custom Model Tuning via Amazon Bedrock & Prompt Distillation | Supervised Fine-Tuning (SFT), Direct Preference (DPO) & Reinforcement Fine-Tuning (RFT) |
| 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) · Audio (~25–32 tokens/sec) |
| 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 | Anthropic RSP ASL-2 / ASL-3 Constitutional Safety Evaluated | OpenAI Preparedness Framework Audited & System Card Published |
| 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, audio |
| Output Modalities | text | text, audio |
Claude Opus 4 vs GPT-6 Astra: Réponses Rapides (FAQ)
Which is more intelligent, Claude Opus 4 or GPT-6 Astra?
GPT-6 Astra is more intelligent. It scores 96 compared with 61 on the composite Intelligence Index.
Which model is faster?
GPT-6 Astra is faster, generating 100 tokens per second compared with 42 tokens per second.
Which model is cheaper to run?
GPT-6 Astra is cheaper at $7.70 per 1M tokens blended, compared with $11.55 (7:2:1 cache:input:output ratio).
Which model has lower latency?
GPT-6 Astra has lower latency, with a time to first token of 0.95s compared with 1.80s.
Which model has a larger context window?
GPT-6 Astra has a larger context window, supporting 272K tokens compared with 200K tokens.
Verdict
Choose Claude Opus 4 for conçu pour le raisonnement logique profond, les mathématiques formelles et l’analyse scientifique, l’intégration rag et les pipelines de production évolutifs., or choose GPT-6 Astra for conçu pour la synthèse vocale naturelle, la transcription audio et le dialogue parlé en temps réel, l’intégration rag et les pipelines de production évolutifs..
Questions fréquentes
Which is cheaper: Claude Opus 4 or GPT-6 Astra?+
Claude Opus 4 costs $15/1M input and $75/1M output tokens, while GPT-6 Astra costs $10/1M input and $50/1M output tokens.
Which model has a larger context window: Claude Opus 4 or GPT-6 Astra?+
Claude Opus 4 supports 200K tokens whereas GPT-6 Astra supports 272K tokens.
Understand key metrics like context window, token pricing, reasoning mode, and SWE-bench scores in our comprehensive AI glossary.
Related reading
- Aion-3.0 vs Aion-Mini : Comparatif Benchmarks, Tarifs API et Vitesse (2026)Comparer
- Aion-3.0 vs Gemini 3.6 Flash : Comparatif Benchmarks, Tarifs API et Vitesse (2026)Comparer
- Aion-Mini vs Laguna XS 2.1 : Comparatif Benchmarks, Tarifs API et Vitesse (2026)Comparer
- Aya Expanse 32B vs Llama 3.2 90B Vision : Comparatif Benchmarks, Tarifs API et Vitesse (2026)Comparer
- Aya Expanse 8B vs Command R+ : Comparatif Benchmarks, Tarifs API et Vitesse (2026)Comparer
- Aya Expanse 8B vs Qwen 2.5 7B Instruct : Comparatif Benchmarks, Tarifs API et Vitesse (2026)Comparer
Les scores de benchmarks, tarifs par token et limites évoluent rapidement. Vérifiez toujours les spécifications actuelles sur la documentation officielle du fournisseur.
Sources: Anthropic & OpenAI Official Documentation