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GPT-6 Astra vs GPT-6 Sol Pro

Detailed technical comparison between GPT-6 Astra (OpenAI) and GPT-6 Sol Pro (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: 6 WinsvsGPT-6 Sol Pro: 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 Pro

$2.00 / MTok
OpenAIactive

GPT-6 Astra

GPT-6 Astra is an advanced artificial intelligence model engineered by OpenAI. Tailored for complex multi-step reasoning, programming synthesis, and extended document comprehension, GPT-6 Astra 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 processes multi-file code repositories, lengthy technical reports, and complex prompts in a single inference call.

View GPT-6 Astra Full Specs →
OpenAIactive

GPT-6 Sol Pro

GPT-6 Sol Pro is an advanced artificial intelligence model engineered by OpenAI. Tailored for complex multi-step reasoning, programming synthesis, and extended document comprehension, GPT-6 Sol Pro 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 Pro processes multi-file code repositories, lengthy technical reports, and complex prompts in a single inference call.

View GPT-6 Sol Pro Full Specs →

Technical Specifications

🏆 = Superior Spec
SpecificationGPT-6 AstraGPT-6 Sol Pro
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

$10.00

GPT-6 Sol Pro

$2.00

Output Price per Million Tokens

GPT-6 Astra

$50.00

GPT-6 Sol Pro

$10.00

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

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
95.4%vs85.8%+9.6% GPT-6 Astra
GPT-6 Astra 🏆
GPT-6 Sol Pro
HumanEvalPython coding & logic synthesis
96.8%vs85.0%+11.8% GPT-6 Astra
GPT-6 Astra 🏆
GPT-6 Sol Pro
MATHComplex mathematical problem solving
94.2%vs66.2%+28.0% GPT-6 Astra
GPT-6 Astra 🏆
GPT-6 Sol Pro
GPQAGraduate-level expert reasoning
86.0%vs47.6%+38.4% GPT-6 Astra
GPT-6 Astra 🏆
GPT-6 Sol Pro
HellaSwagCommonsense reasoning and inference
98.8%vs86.8%+12.0% GPT-6 Astra
GPT-6 Astra 🏆
GPT-6 Sol Pro
MT-BenchMulti-turn conversation flow quality
9.7%vs8.9%+0.7% GPT-6 Astra
GPT-6 Astra 🏆
GPT-6 Sol Pro

GPT-6 Astra Quirks & Gotchas

No developer gotchas reported.

GPT-6 Sol Pro Quirks & Gotchas

No developer gotchas reported.

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