GPT-5.6 Terra vs o1-mini
Pricing verdict: GPT-5.6 Terra vs o1-mini: o1-mini is cheaper for input-heavy usage ($1.10/M vs $2.50/M input tokens), while GPT-5.6 Terra is better for long-context tasks (1,050,000 tokens).
Direct answer: choose o1-mini for lower token spend and choose GPT-5.6 Terra 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 Terra
o1-mini
Cost Differences
o1-mini costs less than GPT-5.6 Terra
Quick Recommendation
Winner for direct API pricing: o1-mini. At the default workload, o1-mini saves about $20.10/month ($244.55/year) versus GPT-5.6 Terra.
Feature Comparison
| Feature | GPT-5.6 Terra | o1-mini |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Input Price | $2.50/1M tokens | $1.10/1M tokens |
| Output Price | $15.00/1M tokens | $4.40/1M tokens |
| Context Window | 1,050,000 tokens | 128,000 tokens |
| Max Output | 128,000 tokens | 65,536 tokens |
| Category | balanced | reasoning |
| Capabilities | textvisioncodereasoning | textreasoning |
| Release Date | 6/26/2026 | 9/12/2024 |
GPT-5.6 Terra vs o1-mini: Which Should You Choose?
Choosing between GPT-5.6 Terra and o1-mini depends on your priorities: cost efficiency, context length, or raw capability. o1-mini is the more affordable option at $1.10/1M input tokens — 56% cheaper than GPT-5.6 Terra. Meanwhile, GPT-5.6 Terra offers a significantly larger context window at 1,050,000 tokens vs 128,000 for o1-mini.
These models target different tiers: GPT-5.6 Terra is a balanced model while o1-mini is reasoning. This means they're optimized for different workloads. o1-mini targets more demanding workloads, while GPT-5.6 Terra provides a cost-effective option for everyday tasks.
Output costs matter too. GPT-5.6 Terra charges $15.00/1M output tokens vs $4.40 for o1-mini. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. o1-mini has the edge here at $4.40/1M output tokens.
Multimodal capabilities: GPT-5.6 Terra supports vision (image inputs) while o1-mini is text-only. If your application needs image understanding, this narrows your choice.
Best Use Cases
Choose GPT-5.6 Terra when:
- • You need a larger context window (1,050,000 tokens)
- • You need more capabilities (vision, code)
- • You need longer outputs (up to 128,000 tokens)
- • You're already using OpenAI's API ecosystem
Choose o1-mini when:
- • Budget is a primary concern
- • You're already using OpenAI's API ecosystem
Pros and Caveats at a Glance
GPT-5.6 Terra
- • Input pricing: $2.50/M tokens
- • Output pricing: $15.00/M tokens
- • Context window: 1,050,000 tokens
- • Max output: 128,000 tokens
Watch out for
- • Higher input cost than o1-mini
- • Higher output cost than o1-mini
o1-mini
- • Input pricing: $1.10/M tokens
- • Output pricing: $4.40/M tokens
- • Context window: 128,000 tokens
- • Max output: 65,536 tokens
Watch out for
- • Smaller context window than GPT-5.6 Terra
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
GPT-5.6 Terra (OpenAI)
o1-mini (OpenAI)
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