Head-to-Head Model Comparison

KAT-Coder-Pro V2.5 vs GPT-5.3 Codex

Benchmarks, API Token Pricing, Context Window & Speed Comparison

Geprüft vom GetInfoUs-ForschungsteamZuletzt geprüft: October 2026Redaktionelle Richtlinien
Teilen
Related topics (12)
AI CompareAI BenchmarkToken PricingModel CostModel SpecsSWE-bench CodingModel VersusWhich AI ModelLLM Speed & LatencyReasoning ModelsExtended ThinkingPrompt Caching ROI
KAT-Coder-Pro V2.5 vs GPT-5.3 Codex: Benchmarks, Pricing & Speed Comparison

KAT-Coder-Pro V2.5 von Kwaipilot und GPT-5.3 Codex von OpenAI gehören zu den führenden KI-Modellen. KAT-Coder-Pro V2.5 bietet ein Kontextfenster von 256K Tokens bei API-Preisen von $0.50/$2.00 pro 1M Tokens, während GPT-5.3 Codex 400K Tokens Kontext zu $2.00/$16.00 pro 1M Tokens bereitstellt. Hier finden Sie den vollständigen Benchmark-, Latenz- und Kostenvergleich.

Direktvergleich (VS)

Beliebige Modelle wechseln & vergleichen

Select any AI models from our verified benchmark database to generate live side-by-side matrices.

Profile
Profile
Multi-Model Arena Stack:
5-Model Matrix Workbench
Popular Matchups:
Kwaipilot

KAT-Coder-Pro V2.5

Spitzenmodell für Programmierung

KAT-Coder-Pro V2.5 von Kwaipilot ist ein KI-Modell für autonomes Software-Engineering, Code-Refactoring und komplexe Fehleranalyse mit 256K Kontextfenster, 80 Token/s Durchsatz, einem Intelligenz-Index von 85/100 und $0.5/$2 pro 1M Token.

Intelligence Index85 / 100
Input Token:

$0.50 / 1M

Output Token:

$2.00 / 1M

Context Window:

256K tokens

SWE-bench Verified:

58%

OpenAI

GPT-5.3 Codex

Spitzenmodell für Programmierung

GPT-5.3 Codex von OpenAI ist ein KI-Modell für autonomes Software-Engineering, Code-Refactoring und komplexe Fehleranalyse mit 400K Kontextfenster, 122 Token/s Durchsatz, einem Intelligenz-Index von 72/100 und $2/$16 pro 1M Token.

Intelligence Index72 / 100
Input Token:

$2.00 / 1M

Output Token:

$16.00 / 1M

Context Window:

400K tokens

SWE-bench Verified:

79%

Wichtigste Unterschiede auf einen Blick

  • KAT-Coder-Pro V2.5 is 6.7x cheaper for API usage (input + output tokens combined).
  • GPT-5.3 Codex has a larger context window (400K vs 256K tokens).
  • GPT-5.3 Codex is faster at 122 tok/s vs 80 tok/s.
  • GPT-5.3 Codex leads on SWE-bench coding (79.0% vs 58.0%).
Need definitions for token pricing, context, or benchmarks?Explore AI Glossary →
FeatureKAT-Coder-Pro V2.5GPT-5.3 Codex
Intelligence Index
Composite reasoning & knowledge score (0-100)
8572
Provider
KwaipilotOpenAI
Input Price
Cost per million input tokens
$0.50 / 1M$2.00 / 1M
Output Price
Cost per million output tokens
$2.00 / 1M$16.00 / 1M
Blended Price
Weighted 7:2:1 cache:input:output per 1M
$0.34 / 1M$2.14 / 1M
Context Window
Maximum input + output tokens
256K tokens~384 A4 pages of text400K tokens~600 A4 pages of text
Max Output Tokens
Per single request
16K128K
Throughput Speed
Tokens generated per second
80 tok/s122 tok/s
SWE-bench Verified
Real-world software engineering
58%79%
GPQA Diamond
Graduate-level reasoning
67%79.2%
Cached Input Price
Prompt caching discount per 1M tokens
$0.05 / 1M$0.20 / 1M

Wer gewinnt in welcher Disziplin?

At-a-glance decision framework
Coding
GPT-5.3 Codex
+21.0% SWE-bench lead
Cost
KAT-Coder-Pro V2.5
6.7x cheaper monthly runtime
Speed
GPT-5.3 Codex
+53% faster generation
Context
GPT-5.3 Codex
400K tokens window

Geprüfte Benchmark-Ergebnisse im Vergleich

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

KAT-Coder-Pro V2.5GPT-5.3 Codex
SWE-bench Verified (Autonomous Coding)

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

58%vs79%
GPQA Diamond (Doctorate-Level Science & Math)

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

67%vs79.2%
MMLU-Pro (Multi-task Language Understanding)

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

81%vs88.4%
LMSYS Chatbot Arena Elo

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

1360ptsvs1424pts
Humanity's Last Exam (Frontier Expert Knowledge)

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

N/Avs15%
Terminal-Bench (Agentic Coding & Terminal Use)

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

N/Avs56%
SciCode (Scientific Computing)

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

N/Avs50.5%
LiveCodeBench (Competitive Coding)

Contamination-free competitive programming problems collected continuously over time.

N/Avs78.2%
AIME (Advanced Math Competition)

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

N/Avs94.4%
Long-Context Reasoning

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

N/Avs84%
Generation Speed (Throughput)

Tokens emitted per second during active generation streaming.

80 tok/s vs122 tok/s

Latenz & Antwortzeit

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
KAT-Coder-Pro V2.50.51s
GPT-5.3 Codex1.23s
Est. End-to-End Response (500 tokens)TTFT + generation time
KAT-Coder-Pro V2.56.76s
GPT-5.3 Codex5.33s

Interaktiver Token-Kosten-Simulator

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)
KAT-Coder-Pro V2.5 Monthly API Bill
$2.63 / month
$0.5/1M in · $2/1M out
GPT-5.3 Codex Monthly API Bill
$17.70 / month
$2/1M in · $16/1M out
KAT-Coder-Pro V2.5 saves approximately $15.07 / month (85%) under this workload.6.7x Savings

KAT-Coder-Pro V2.5 · Strengths & Key Advantages

  • 256K Kontextfenster und bis zu 16K maximale Output-Token (SWE-bench Verified 58% · GPQA Diamond 67%)
  • Hohe Generierungsgeschwindigkeit von 80 Token/Sekunde bei nur 510 ms Erstlatenz (TTFT)
  • Effiziente API-Struktur ($0.5/$2 pro 1M Token) inklusive Prompt-Caching, Tool-Calling und strikter JSON-Ausgabe
Considerations & Trade-offs
  • Proprietäres Cloud-Modell ohne Möglichkeit zum lokalen Download der Modellgewichte
  • Bei extrem komplexen mehrstufigen Forschungsfragen bieten schwere Reasoning-Spezialmodelle noch tiefere Analysen

GPT-5.3 Codex · Strengths & Key Advantages

  • 400K Kontextfenster und bis zu 128K maximale Output-Token (SWE-bench Verified 79% · GPQA Diamond 79.2%)
  • Hohe Generierungsgeschwindigkeit von 122 Token/Sekunde bei nur 1230 ms Erstlatenz (TTFT)
  • Effiziente API-Struktur ($2/$16 pro 1M Token) inklusive Prompt-Caching, Tool-Calling und strikter JSON-Ausgabe
Considerations & Trade-offs
  • Proprietäres Cloud-Modell ohne Möglichkeit zum lokalen Download der Modellgewichte
  • Bei hohem Anfragevolumen empfiehlt sich der Einsatz von Prompt-Caching und Batch-API zur Kostenoptimierung

Token Use & Task Economics

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

MetricKAT-Coder-Pro V2.5GPT-5.3 Codex
Cost per Task
Estimated USD to finish one task
$0.18$2.60
Output Tokens / Task
Tokens generated per task
22K62K
Reasoning Tokens / Task
Thinking tokens burned per task
7K36K

Technische Spezifikationen

Architecture, release timeline, capabilities, and modalities.

FeatureKAT-Coder-Pro V2.5GPT-5.3 Codex
Official API Model ID (SDK)kat-coder-pro-v2-5gpt-5-3-codex
API ProtocolKwaipilot REST API (OpenAI-Compatible)OpenAI Responses API & Chat Completions v1
Release Date2026-072026-02
Knowledge CutoffApril 2026November 2025
ArchitectureAgentic Code-Specialized TransformerCode-specialised unified reasoning model
ParametersConfidentialConfidential
Enterprise Rate Limits (RPM / TPM)5,000 – 15,000 RPM (Production Tier) · 800,000 – 2,000,000 TPM10,000 – 30,000 RPM (Tier 5 Enterprise) · 800,000 – 2,000,000 TPM
Long-Context Tier (>128K/200K)Flat rate ($0.5/1M in) across full 256K windowFlat rate ($2/1M in) across full 400K window
Prompt Cache Policy & TTLCached input at $0.05/1M tokensAutomatic prefix caching at $0.2/1M (no extra cache-write fee)
Computer Use / GUI AgentAPI / CLI Tool-Use & DOM Agent ready (no raw pixel desktop click loop)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 & SandboxSupported via external Tavily/Exa Search & E2B/Docker Sandbox toolsNative Web Search tool + Hosted Code Interpreter & File Search RAG
Official Fine-Tuning SupportAPI Prompt Engineering & RAG DistillationSupervised Fine-Tuning (SFT), Direct Preference (DPO) & Reinforcement Fine-Tuning (RFT)
Multimodal Token BillingText BPE (~4 chars/token)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)Cloud-Hosted Proprietary (FP8 / BF16 Tensor Core Cluster) · Zero Local VRAM Required (100% Serverless Cloud API)
Safety & Frontier ClassificationKwaipilot Production Safety & Alignment VerifiedOpenAI Preparedness Framework Audited & System Card Published
Enterprise Compliance (ZDR/HIPAA/SOC2)SOC2 Type II · GDPR · Zero Data Retention (ZDR) & HIPAA BAA Available on Enterprise TierSOC2 Type II · GDPR · Zero Data Retention (ZDR) & HIPAA BAA Available on Enterprise Tier
Input Modalitiestexttext, vision
Output Modalitiestexttext

KAT-Coder-Pro V2.5 vs GPT-5.3 Codex: Schnelle Antworten (FAQ)

Which is more intelligent, KAT-Coder-Pro V2.5 or GPT-5.3 Codex?

KAT-Coder-Pro V2.5 is more intelligent. It scores 85 compared with 72 on the composite Intelligence Index.

Which model is faster?

GPT-5.3 Codex is faster, generating 122 tokens per second compared with 80 tokens per second.

Which model is cheaper to run?

KAT-Coder-Pro V2.5 is cheaper at $0.34 per 1M tokens blended, compared with $2.14 (7:2:1 cache:input:output ratio).

Which model has lower latency?

KAT-Coder-Pro V2.5 has lower latency, with a time to first token of 0.51s compared with 1.23s.

Which model has a larger context window?

GPT-5.3 Codex has a larger context window, supporting 400K tokens compared with 256K tokens.

Fazit

Sowohl KAT-Coder-Pro V2.5 (Optimal für autonomes Software-Engineering, Code-Refactoring und komplexe Fehleranalyse, Enterprise-RAG-Systeme und skalierbare API-Pipelines.) als auch GPT-5.3 Codex (Optimal für autonomes Software-Engineering, Code-Refactoring und komplexe Fehleranalyse, Enterprise-RAG-Systeme und skalierbare API-Pipelines.) überzeugen im Produktionseinsatz: KAT-Coder-Pro V2.5 führt bei komplexem Reasoning und Coding, GPT-5.3 Codex liefert den höheren Token-Durchsatz und KAT-Coder-Pro V2.5 ist die kosteneffizienteste Wahl für große API-Workloads.

Häufig gestellte Fragen (FAQ)

Welches Modell ist besser für Coding und Reasoning – KAT-Coder-Pro V2.5 oder GPT-5.3 Codex?+

Im Gesamt-Intelligenzindex und bei Software-Benchmarks liegt KAT-Coder-Pro V2.5 vorn. Prüfen Sie oben die SWE-bench- und GPQA-Werte für Ihren Anwendungsfall.

Wie unterscheiden sich die API-Preise von KAT-Coder-Pro V2.5 und GPT-5.3 Codex?+

KAT-Coder-Pro V2.5 kostet $0.50 / $2.00 pro 1M Input-/Output-Tokens, GPT-5.3 Codex liegt bei $2.00 / $16.00. Beim gewichteten Gesamtpreis ist KAT-Coder-Pro V2.5 günstiger.

Welches Modell hat das größere Kontextfenster und die höhere Geschwindigkeit?+

KAT-Coder-Pro V2.5 bietet 256K Tokens Kontext gegenüber 400K Tokens bei GPT-5.3 Codex. Bei der Generierungsgeschwindigkeit liegt GPT-5.3 Codex vorn.

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.

Offizielle Quellen: Offizielle API-Dokumentation von Kwaipilot und OpenAI, Systemkarten und unabhängige Benchmark-Auswertungen (2026).