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GPT-6 Astra Pro vs GPT-6 Sol

Detailed technical comparison between GPT-6 Astra Pro (OpenAI) and GPT-6 Sol (OpenAI). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.

⚡ Executive Summary & Verdict

Comparison Snapshot

GPT-6 Astra Pro: 6 WinsvsGPT-6 Sol: 0 Wins
Context Leader

Tie

Equal Capacity
Agentic Tool-Calling

Tie

Equal Capability
Lowest Latency (TTFT)

Tie

Equal Speed
Input Price Leader

GPT-6 Sol

$2.00 / MTok
OpenAIactive

GPT-6 Astra Pro

GPT-6 Astra Pro is an advanced artificial intelligence model engineered by OpenAI. Tailored for complex multi-step reasoning, programming synthesis, and extended document comprehension, GPT-6 Astra Pro represents a key architectural iteration in the OpenAI model family. First released in 2026-09-04, it serves enterprise developers, research teams, and autonomous system architects requiring strict instruction compliance. Featuring an input capacity of 1,050,000 tokens (approximately 1,400 words), GPT-6 Astra Pro processes multi-file code repositories, lengthy technical reports, and complex prompts in a single inference call.

View GPT-6 Astra Pro Full Specs →
OpenAIactive

GPT-6 Sol

GPT-6 Sol is an advanced artificial intelligence model engineered by OpenAI. Tailored for complex multi-step reasoning, programming synthesis, and extended document comprehension, GPT-6 Sol represents a key architectural iteration in the OpenAI model family. First released in 2026-09-22, it serves enterprise developers, research teams, and autonomous system architects requiring strict instruction compliance. Featuring an input capacity of 1,050,000 tokens (approximately 1,400 words), GPT-6 Sol processes multi-file code repositories, lengthy technical reports, and complex prompts in a single inference call.

View GPT-6 Sol Full Specs →

Technical Specifications

🏆 = Superior Spec
SpecificationGPT-6 Astra ProGPT-6 Sol
ProviderOpenAIOpenAI
Context Window1,050,000 tokens1,050,000 tokens
Agent SuitabilityNot yet benchmarkedNot yet benchmarked
Time to First Token (TTFT)No public TTFT dataNo public TTFT data
Deployment Modelmanaged apimanaged api
Production StabilityBeta Access (est.)Beta Access (est.)
API AvailableYesYes
Released Date2026-09-042026-09-22

API Pricing Comparison

Input Price per Million Tokens

GPT-6 Astra Pro

$10.00

GPT-6 Sol

$2.00

Output Price per Million Tokens

GPT-6 Astra Pro

$50.00

GPT-6 Sol

$10.00

💡 Cost Ratio: GPT-6 Sol is 5.0x cheaper per input token than GPT-6 Astra Pro.

Want to test both models live?

Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.

Benchmark Performance Metrics

Standardized Scores (0–100%)

Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.

MMLUGeneral knowledge & multi-task understanding
96.2%vs80.6%+15.6% GPT-6 Astra Pro
GPT-6 Astra Pro 🏆
GPT-6 Sol
HumanEvalPython coding & logic synthesis
97.4%vs78.8%+18.6% GPT-6 Astra Pro
GPT-6 Astra Pro 🏆
GPT-6 Sol
MATHComplex mathematical problem solving
95.8%vs56.0%+39.8% GPT-6 Astra Pro
GPT-6 Astra Pro 🏆
GPT-6 Sol
GPQAGraduate-level expert reasoning
88.5%vs41.4%+47.1% GPT-6 Astra Pro
GPT-6 Astra Pro 🏆
GPT-6 Sol
HellaSwagCommonsense reasoning and inference
99.1%vs83.6%+15.5% GPT-6 Astra Pro
GPT-6 Astra Pro 🏆
GPT-6 Sol
MT-BenchMulti-turn conversation flow quality
9.8%vs8.6%+1.1% GPT-6 Astra Pro
GPT-6 Astra Pro 🏆
GPT-6 Sol

GPT-6 Astra Pro Quirks & Gotchas

No developer gotchas reported.

GPT-6 Sol Quirks & Gotchas

No developer gotchas reported.

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