GPT-5.6 Cyber vs GPT-6 Astra
Pricing verdict: GPT-5.6 Cyber vs GPT-6 Astra: GPT-6 Astra is cheaper for input-heavy usage ($10.00/M vs $12.50/M input tokens), while GPT-6 Astra is better for long-context tasks (1,050,000 tokens).
Direct answer: choose GPT-6 Astra for lower token spend and choose GPT-6 Astra when your workload needs longer context.
Compare API pricing, input and output token costs, context windows, and monthly estimates on one page so you can pick the right model fast.
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
GPT-5.6 Cyber
GPT-6 Astra
Cost Differences
GPT-6 Astra costs less than GPT-5.6 Cyber
Quick Recommendation
Winner for direct API pricing: GPT-6 Astra. At the default workload, GPT-6 Astra saves about $45.00/month ($547.50/year) versus GPT-5.6 Cyber.
Feature Comparison
| Feature | GPT-5.6 Cyber | GPT-6 Astra |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input Price | $12.50/1M tokens | $10.00/1M tokens |
| Output Price | $75.00/1M tokens | $50.00/1M tokens |
| Context Window | 400,000 tokens | 1,050,000 tokens |
| Max Output | 128,000 tokens | 128,000 tokens |
| Category | reasoning | flagship |
| Capabilities | textvisioncodereasoning | textvisioncodereasoning |
| Release Date | 8/10/2026 | 9/3/2026 |
GPT-5.6 Cyber vs GPT-6 Astra: Which Should You Choose?
Choosing between GPT-5.6 Cyber and GPT-6 Astra depends on your priorities: cost efficiency, context length, or raw capability. GPT-6 Astra is the more affordable option at $10.00/1M input tokens — 20% cheaper than GPT-5.6 Cyber. Meanwhile, GPT-6 Astra offers a significantly larger context window at 1,050,000 tokens vs 400,000 for GPT-5.6 Cyber.
These models target different tiers: GPT-5.6 Cyber is a reasoning model while GPT-6 Astra is flagship. This means they're optimized for different workloads. GPT-5.6 Cyber is built for complex tasks that require deeper reasoning, while GPT-6 Astra offers better value for routine operations.
Output costs matter too. GPT-5.6 Cyber charges $75.00/1M output tokens vs $50.00 for GPT-6 Astra. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. GPT-6 Astra has the edge here at $50.00/1M output tokens.
Multimodal capabilities: Both models support vision (image understanding), so you can send images alongside text prompts with either option.
Best Use Cases
Choose GPT-5.6 Cyber when:
- • You're already using OpenAI's API ecosystem
Choose GPT-6 Astra when:
- • Budget is a primary concern
- • You need a larger context window (1,050,000 tokens)
- • You're already using OpenAI's API ecosystem
Pros and Caveats at a Glance
GPT-5.6 Cyber
- • Input pricing: $12.50/M tokens
- • Output pricing: $75.00/M tokens
- • Context window: 400,000 tokens
- • Max output: 128,000 tokens
Watch out for
- • Higher input cost than GPT-6 Astra
- • Higher output cost than GPT-6 Astra
- • Smaller context window than GPT-6 Astra
GPT-6 Astra
- • Input pricing: $10.00/M tokens
- • Output pricing: $50.00/M tokens
- • Context window: 1,050,000 tokens
- • Max output: 128,000 tokens
Watch out for
- • Trade-offs are minor in this matchup.
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
GPT-5.6 Cyber (OpenAI)
GPT-6 Astra (OpenAI)
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Which is cheaper, GPT-5.6 Cyber or GPT-6 Astra?▼
What is the context window difference between GPT-5.6 Cyber and GPT-6 Astra?▼
Which model is better for AI Agent / Agentic Workflows?▼
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