Head-to-Head Model Comparison

o3-pro vs Llama 4 Behemoth

Benchmarks, API Token Pricing, Context Window & Speed Comparison

GetInfoUs リサーチチーム監修最終確認日: October 2026編集方針
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OpenAIMetareasoningopen-source

Compare o3-pro by OpenAI against Llama 4 Behemoth by Meta across real-world coding, reasoning, token economics, and latency.

徹底比較 (VS)

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OpenAI

o3-pro

ディープ推論・論理エンジン

OpenAI の o3-pro は、高度な数学的推論、科学技術計算、多段階の思考連鎖(Chain-of-Thought)向けに設計されたAIモデルです。200K のコンテキストウィンドウ、毎秒 30 トークンの生成速度、知能指数 58/100(1Mトークンあたり入力$20・出力$80)を実現しています。

Intelligence Index58 / 100
Input Token:

$20.00 / 1M

Output Token:

$80.00 / 1M

Context Window:

200K tokens

SWE-bench Verified:

71.5%

Meta

Llama 4 Behemoth

オープンウェイト基盤モデル

Meta の Llama 4 Behemoth は、オンプレミス環境でのセルフホスト、ファインチューニング、完全なデータ主権の確保向けに設計されたAIモデルです。10M のコンテキストウィンドウ、毎秒 45 トークンの生成速度、知能指数 93/100(無料のオープンウェイト提供)を実現しています。

Intelligence Index93 / 100
Input Token:

$0.00 / 1M

Output Token:

$0.00 / 1M

Context Window:

10M tokens

SWE-bench Verified:

75%

ひと目でわかる主な違い

  • Llama 4 Behemoth is 1.0x cheaper for API usage (input + output tokens combined).
  • Llama 4 Behemoth has a larger context window (10M vs 200K tokens).
  • Llama 4 Behemoth is faster at 45 tok/s vs 30 tok/s.
  • Llama 4 Behemoth leads on SWE-bench coding (75.0% vs 71.5%).
Need definitions for token pricing, context, or benchmarks?Explore AI Glossary →
Featureo3-proLlama 4 Behemoth
Intelligence Index
Composite reasoning & knowledge score (0-100)
5893
Provider
OpenAIMeta
Input Price
Cost per million input tokens
$20.00 / 1M$0.00 / 1M
Output Price
Cost per million output tokens
$80.00 / 1M$0.00 / 1M
Blended Price
Weighted 7:2:1 cache:input:output per 1M
$15.50 / 1M$0.00 / 1M
Context Window
Maximum input + output tokens
200K tokens~300 A4 pages of text10M tokens~15,000 A4 pages of text
Max Output Tokens
Per single request
100K64K
Throughput Speed
Tokens generated per second
30 tok/s45 tok/s
SWE-bench Verified
Real-world software engineering
71.5%75%
GPQA Diamond
Graduate-level reasoning
79.5%82%
Cached Input Price
Prompt caching discount per 1M tokens
$5.00 / 1M$0.00 / 1M

分野別勝者スコアカード

At-a-glance decision framework
Coding
Llama 4 Behemoth
+3.5% SWE-bench lead
Cost
Llama 4 Behemoth
1.0x cheaper monthly runtime
Speed
Llama 4 Behemoth
+50% faster generation
Context
Llama 4 Behemoth
10M tokens window

検証済みベンチマークスコア比較

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

o3-proLlama 4 Behemoth
SWE-bench Verified (Autonomous Coding)

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

71.5%vs75%
GPQA Diamond (Doctorate-Level Science & Math)

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

79.5%vs82%
MMLU-Pro (Multi-task Language Understanding)

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

88.5%vs88.5%
LMSYS Chatbot Arena Elo

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

1352ptsvs1490pts
Humanity's Last Exam (Frontier Expert Knowledge)

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

13.6%vsN/A
Terminal-Bench (Agentic Coding & Terminal Use)

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

47.5%vsN/A
SciCode (Scientific Computing)

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

45.5%vsN/A
LiveCodeBench (Competitive Coding)

Contamination-free competitive programming problems collected continuously over time.

73%vsN/A
AIME (Advanced Math Competition)

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

93%vsN/A
Long-Context Reasoning

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

80.5%vs95%
Generation Speed (Throughput)

Tokens emitted per second during active generation streaming.

30 tok/s vs45 tok/s

レイテンシ&応答時間

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
o3-pro5.20s
Llama 4 Behemoth1.20s
Est. End-to-End Response (500 tokens)TTFT + generation time
o3-pro21.87s
Llama 4 Behemoth12.31s

リアルタイムAPIトークン料金シミュレーター

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)
o3-pro Monthly API Bill
$109.50 / month
$20/1M in · $80/1M out
Llama 4 Behemoth Monthly API Bill
$0.00 / month
$0/1M in · $0/1M out
Llama 4 Behemoth saves approximately $109.50 / month (100%) under this workload.1.0x Savings

o3-pro · Strengths & Key Advantages

  • 200K のコンテキストウィンドウと最大 100K トークンの出力容量(SWE-bench Verified 71.5% · GPQA Diamond 79.5%)
  • 毎秒 30 トークンの高速スループットと、初回トークン到達時間(TTFT)わずか 5200ms の低遅延
  • 優れたAPI経済性(1Mトークンあたり入力$20・出力$80)に加え、プロンプトキャッシュや構造化JSON出力・関数呼び出しに完全対応
Considerations & Trade-offs
  • クラウド専用のプロプライエタリモデルのため、モデル重みをダウンロードしてオフライン実行することはできません
  • 大量のトークンを処理する本番環境では、プロンプトキャッシュや Batch API の併用によるコスト最適化が推奨されます

Llama 4 Behemoth · Strengths & Key Advantages

  • 10M のコンテキストウィンドウと最大 64K トークンの出力容量(SWE-bench Verified 75% · GPQA Diamond 82%)
  • 毎秒 45 トークンの高速スループットと、初回トークン到達時間(TTFT)わずか 1200ms の低遅延
  • オープンウェイトモデル (2T total / 288B (16-of-2 MoE))として vLLM・SGLang・Ollama を用いた自社GPUでのローカル運用が可能
Considerations & Trade-offs
  • 非量子化のフル精度でローカル推論を行うには十分なGPU VRAM容量が必要です
  • 極めて高度な専門科学の証明問題では、上位の大型推論特化モデルの方がより深い洞察を提供する場合があります

Token Use & Task Economics

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

Metrico3-proLlama 4 Behemoth
Cost per Task
Estimated USD to finish one task
$11.68$0.00
Output Tokens / Task
Tokens generated per task
58K35K
Reasoning Tokens / Task
Thinking tokens burned per task
38K15K

技術仕様・スペック

Architecture, release timeline, capabilities, and modalities.

Featureo3-proLlama 4 Behemoth
Official API Model ID (SDK)o3-prometa-llama/Llama-4-Behemoth
API ProtocolOpenAI Responses API & Chat Completions v1OpenAI-Compatible REST / vLLM / SGLang / HuggingFace TGI
Release Date2025-062026-05
Knowledge CutoffJune 2024February 2026
ArchitectureHigh-effort reasoning transformerColossal sparse MoE architecture (288B active / 2T total, 16-of-2 MoE)
ParametersConfidential2T total / 288B active (16-of-2 MoE)
Enterprise Rate Limits (RPM / TPM)10,000 – 30,000 RPM (Tier 5 Enterprise) · 800,000 – 2,000,000 TPMUnlimited (Hardware-bound on self-hosted GPU) / 10,000 RPM Cloud · Unlimited local throughput / 10M+ TPM Managed Cloud
Long-Context Tier (>128K/200K)Flat rate ($20/1M in) across full 200K windowFree across full context window (only KV-cache VRAM scales)
Prompt Cache Policy & TTLAutomatic prefix caching at $5/1M (no extra cache-write fee)Automatic prefix KV-caching in vLLM / SGLang (0 cost)
Computer Use / GUI AgentSupported (Screen coordinate grounding, browser & desktop GUI action loops)Supported (Screen coordinate grounding, browser & desktop GUI action loops)
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 SupportSupervised Fine-Tuning (SFT), Direct Preference (DPO) & Reinforcement Fine-Tuning (RFT)Full Weights SFT, LoRA, QLoRA, DPO & GRPO RL (Unsloth / Axolotl / Llama-Factory)
Multimodal Token BillingText 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 VRAMCloud-Hosted Proprietary (FP8 / BF16 Tensor Core Cluster) · Zero Local VRAM Required (100% Serverless Cloud API)BF16 / FP16, FP8 Dynamic, INT4 AWQ / GPTQ, GGUF (Q4_K_M / Q8_0) · 1240 GB VRAM (4-bit Quantized) · 4300 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)SOC2 Type II · GDPR · Zero Data Retention (ZDR) & HIPAA BAA Available on Enterprise Tier100% Air-Gapped On-Premises / Private VPC · Full HIPAA, GDPR & SOC2 Control
Input Modalitiestext, visiontext, vision
Output Modalitiestexttext

o3-pro vs Llama 4 Behemoth: よくある質問 (FAQ)

Which is more intelligent, o3-pro or Llama 4 Behemoth?

Llama 4 Behemoth is more intelligent. It scores 93 compared with 58 on the composite Intelligence Index.

Which model is faster?

Llama 4 Behemoth is faster, generating 45 tokens per second compared with 30 tokens per second.

Which model is cheaper to run?

Llama 4 Behemoth is cheaper at $0.00 per 1M tokens blended, compared with $15.50 (7:2:1 cache:input:output ratio).

Which model has lower latency?

Llama 4 Behemoth has lower latency, with a time to first token of 1.20s compared with 5.20s.

Which model has a larger context window?

Llama 4 Behemoth has a larger context window, supporting 10M tokens compared with 200K tokens.

総合評価

Choose o3-pro for 高度な数学的推論、科学技術計算、多段階の思考連鎖(chain-of-thought)、エンタープライズrag基盤、スケーラブルな本番api統合に最適。, or choose Llama 4 Behemoth for オンプレミス環境でのセルフホスト、ファインチューニング、完全なデータ主権の確保、エンタープライズrag基盤、スケーラブルな本番api統合に最適。.

よくある質問 (FAQ)

Which is cheaper: o3-pro or Llama 4 Behemoth?+

o3-pro costs $20/1M input and $80/1M output tokens, while Llama 4 Behemoth costs $0/1M input and $0/1M output tokens.

Which model has a larger context window: o3-pro or Llama 4 Behemoth?+

o3-pro supports 200K tokens whereas Llama 4 Behemoth supports 10M tokens.

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.

公的ソース: OpenAI & Meta Official Documentation