Head-to-Head Model Comparison

Kimi K3 vs GPT-6 Astra

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
Kimi K3 vs GPT-6 Astra: Benchmarks, Pricing & Speed Comparison

Kimi K3 von Moonshot AI und GPT-6 Astra von OpenAI gehören zu den führenden KI-Modellen. Kimi K3 bietet ein Kontextfenster von 1.05M Tokens bei API-Preisen von $0.00/$0.00 pro 1M Tokens, während GPT-6 Astra 272K Tokens Kontext zu $10.00/$50.00 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:
Moonshot AI

Kimi K3

Open-Weights-Reasoning-Modell

Kimi K3 von Moonshot AI ist ein KI-Modell für Open-Weights-Reasoning mit transparenter Gedankenketten-Verarbeitung (Chain-of-Thought) mit 1.0M Kontextfenster, 58 Token/s Durchsatz, einem Intelligenz-Index von 93/100 und kostenlosem Open-Wei

Intelligence Index93 / 100
Input Token:

$0.00 / 1M

Output Token:

$0.00 / 1M

Context Window:

1.05M tokens

SWE-bench Verified:

74.5%

OpenAI

GPT-6 Astra

Natives Sprach- & Audiomodell

GPT-6 Astra von OpenAI ist ein KI-Modell für natürliche Sprachsynthese, Echtzeit-Audioverarbeitung und präzise Transkription mit 272K Kontextfenster, 100 Token/s Durchsatz, einem Intelligenz-Index von 96/100 und $10/$50 pro 1M Token.

Intelligence Index96 / 100
Input Token:

$10.00 / 1M

Output Token:

$50.00 / 1M

Context Window:

272K tokens

SWE-bench Verified:

82.4%

Wichtigste Unterschiede auf einen Blick

  • Kimi K3 is 1.0x cheaper for API usage (input + output tokens combined).
  • Kimi K3 has a larger context window (1M vs 272K tokens).
  • GPT-6 Astra is faster at 100 tok/s vs 58 tok/s.
  • GPT-6 Astra leads on SWE-bench coding (82.4% vs 74.5%).
Need definitions for token pricing, context, or benchmarks?Explore AI Glossary →
FeatureKimi K3GPT-6 Astra
Intelligence Index
Composite reasoning & knowledge score (0-100)
9396
Provider
Moonshot AIOpenAI
Input Price
Cost per million input tokens
$0.00 / 1M$10.00 / 1M
Output Price
Cost per million output tokens
$0.00 / 1M$50.00 / 1M
Blended Price
Weighted 7:2:1 cache:input:output per 1M
$0.00 / 1M$7.70 / 1M
Context Window
Maximum input + output tokens
1.05M tokens~1,573 A4 pages of text272K tokens~408 A4 pages of text
Max Output Tokens
Per single request
131K128K
Throughput Speed
Tokens generated per second
58 tok/s100 tok/s
SWE-bench Verified
Real-world software engineering
74.5%82.4%
GPQA Diamond
Graduate-level reasoning
79%80.9%
Cached Input Price
Prompt caching discount per 1M tokens
$0.00 / 1M$1.00 / 1M

Wer gewinnt in welcher Disziplin?

At-a-glance decision framework
Coding
GPT-6 Astra
+7.9% SWE-bench lead
Cost
Kimi K3
1.0x cheaper monthly runtime
Speed
GPT-6 Astra
+72% faster generation
Context
Kimi K3
1.05M tokens window

Geprüfte Benchmark-Ergebnisse im Vergleich

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

Kimi K3GPT-6 Astra
SWE-bench Verified (Autonomous Coding)

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

74.5%vs82.4%
GPQA Diamond (Doctorate-Level Science & Math)

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

79%vs80.9%
MMLU-Pro (Multi-task Language Understanding)

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

88.8%vs89.9%
LMSYS Chatbot Arena Elo

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

1480ptsvs1520pts
Humanity's Last Exam (Frontier Expert Knowledge)

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

N/Avs18.2%
Terminal-Bench (Agentic Coding & Terminal Use)

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

N/Avs63.8%
SciCode (Scientific Computing)

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

N/Avs54.9%
LiveCodeBench (Competitive Coding)

Contamination-free competitive programming problems collected continuously over time.

N/Avs79.8%
AIME (Advanced Math Competition)

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

N/Avs93.6%
Long-Context Reasoning

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

N/Avs91.2%
Generation Speed (Throughput)

Tokens emitted per second during active generation streaming.

58 tok/s vs100 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
Kimi K30.72s
GPT-6 Astra0.95s
Est. End-to-End Response (500 tokens)TTFT + generation time
Kimi K39.34s
GPT-6 Astra5.95s

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)
Kimi K3 Monthly API Bill
$0.00 / month
$0/1M in · $0/1M out
GPT-6 Astra Monthly API Bill
$61.50 / month
$10/1M in · $50/1M out
Kimi K3 saves approximately $61.50 / month (100%) under this workload.1.0x Savings

Kimi K3 · Strengths & Key Advantages

  • 1.0M Kontextfenster und bis zu 131K maximale Output-Token (SWE-bench Verified 74.5% · GPQA Diamond 79%)
  • Hohe Generierungsgeschwindigkeit von 58 Token/Sekunde bei nur 720 ms Erstlatenz (TTFT)
  • Offene Modellgewichte (2.8T total (MoE)) für lokales Self-Hosting und Fine-Tuning über vLLM, SGLang oder Ollama
Considerations & Trade-offs
  • Erfordert dedizierte GPU-Hardware mit ausreichend VRAM für den lokalen Betrieb in voller Präzision
  • Bei extrem komplexen mehrstufigen Forschungsfragen bieten schwere Reasoning-Spezialmodelle noch tiefere Analysen

GPT-6 Astra · Strengths & Key Advantages

  • 272K Kontextfenster und bis zu 128K maximale Output-Token (SWE-bench Verified 82.4% · GPQA Diamond 80.9%)
  • Hohe Generierungsgeschwindigkeit von 100 Token/Sekunde bei nur 950 ms Erstlatenz (TTFT)
  • Effiziente API-Struktur ($10/$50 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.

MetricKimi K3GPT-6 Astra
Cost per Task
Estimated USD to finish one task
$2.00$2.15
Output Tokens / Task
Tokens generated per task
35K58K
Reasoning Tokens / Task
Thinking tokens burned per task
18K32K

Technische Spezifikationen

Architecture, release timeline, capabilities, and modalities.

FeatureKimi K3GPT-6 Astra
Official API Model ID (SDK)kimi-k3gpt-6-astra
API ProtocolOpenAI-Compatible REST / vLLM / SGLang / HuggingFace TGIOpenAI Responses API & Chat Completions v1
Release Date2026-072026-09
Knowledge CutoffMarch 2026June 2026
ArchitectureColossus-Scale Multimodal Sparse Mixture-of-ExpertsOmni-Adaptive Autoregressive with Dynamic CoT
Parameters2.8T total (MoE)Confidential
Enterprise Rate Limits (RPM / TPM)Unlimited (Hardware-bound on self-hosted GPU) / 10,000 RPM Cloud · Unlimited local throughput / 10M+ TPM Managed Cloud10,000 – 30,000 RPM (Tier 5 Enterprise) · 800,000 – 2,000,000 TPM
Long-Context Tier (>128K/200K)Free across full context window (only KV-cache VRAM scales)Flat rate ($10/1M in) across full 272K window
Prompt Cache Policy & TTLAutomatic prefix KV-caching in vLLM / SGLang (0 cost)Automatic prefix caching at $1/1M (no extra cache-write fee)
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 & SandboxSupported via external Tavily/Exa Search & E2B/Docker Sandbox toolsNative Web Search tool + Hosted Code Interpreter & File Search RAG
Official Fine-Tuning SupportFull Weights SFT, LoRA, QLoRA, DPO & GRPO RL (Unsloth / Axolotl / Llama-Factory)Supervised Fine-Tuning (SFT), Direct Preference (DPO) & Reinforcement Fine-Tuning (RFT)
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) · Audio (~25–32 tokens/sec)
Quantization & Min GPU VRAMBF16 / FP16, FP8 Dynamic, INT4 AWQ / GPTQ, GGUF (Q4_K_M / Q8_0) · 1736 GB VRAM (4-bit Quantized) · 6020 GB VRAM (Native BF16)Cloud-Hosted Proprietary (FP8 / BF16 Tensor Core Cluster) · Zero Local VRAM Required (100% Serverless Cloud API)
Safety & Frontier ClassificationOpen-Weights System Card + Customizable Guardrail Layer (Llama Guard / ShieldGemma)OpenAI Preparedness Framework Audited & System Card Published
Enterprise Compliance (ZDR/HIPAA/SOC2)100% Air-Gapped On-Premises / Private VPC · Full HIPAA, GDPR & SOC2 ControlSOC2 Type II · GDPR · Zero Data Retention (ZDR) & HIPAA BAA Available on Enterprise Tier
Input Modalitiestext, visiontext, vision, audio
Output Modalitiestexttext, audio

Kimi K3 vs GPT-6 Astra: Schnelle Antworten (FAQ)

Which is more intelligent, Kimi K3 or GPT-6 Astra?

GPT-6 Astra is more intelligent. It scores 96 compared with 93 on the composite Intelligence Index.

Which model is faster?

GPT-6 Astra is faster, generating 100 tokens per second compared with 58 tokens per second.

Which model is cheaper to run?

Kimi K3 is cheaper at $0.00 per 1M tokens blended, compared with $7.70 (7:2:1 cache:input:output ratio).

Which model has lower latency?

Kimi K3 has lower latency, with a time to first token of 0.72s compared with 0.95s.

Which model has a larger context window?

Kimi K3 has a larger context window, supporting 1.05M tokens compared with 272K tokens.

Fazit

Sowohl Kimi K3 (Optimal für Open-Weights-Reasoning mit transparenter Gedankenketten-Verarbeitung (Chain-of-Thought), Enterprise-RAG-Systeme und skalierbare API-Pipelines.) als auch GPT-6 Astra (Optimal für natürliche Sprachsynthese, Echtzeit-Audioverarbeitung und präzise Transkription, Enterprise-RAG-Systeme und skalierbare API-Pipelines.) überzeugen im Produktionseinsatz: GPT-6 Astra führt bei komplexem Reasoning und Coding, GPT-6 Astra liefert den höheren Token-Durchsatz und Kimi K3 ist die kosteneffizienteste Wahl für große API-Workloads.

Häufig gestellte Fragen (FAQ)

Welches Modell ist besser für Coding und Reasoning – Kimi K3 oder GPT-6 Astra?+

Im Gesamt-Intelligenzindex und bei Software-Benchmarks liegt GPT-6 Astra vorn. Prüfen Sie oben die SWE-bench- und GPQA-Werte für Ihren Anwendungsfall.

Wie unterscheiden sich die API-Preise von Kimi K3 und GPT-6 Astra?+

Kimi K3 kostet $0.00 / $0.00 pro 1M Input-/Output-Tokens, GPT-6 Astra liegt bei $10.00 / $50.00. Beim gewichteten Gesamtpreis ist Kimi K3 günstiger.

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

Kimi K3 bietet 1.05M Tokens Kontext gegenüber 272K Tokens bei GPT-6 Astra. Bei der Generierungsgeschwindigkeit liegt GPT-6 Astra 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 Moonshot AI und OpenAI, Systemkarten und unabhängige Benchmark-Auswertungen (2026).