Claude Haiku 4.5 vs GPT-5.6 Terra — Price, Context, and Capability Compared
Verdict
GPT-5.6 Terra costs 2.3× more per blended million tokens than Claude Haiku 4.5. GPT-5.6 Terra has the larger context window (400,000 tokens). Default to Claude Haiku 4.5 unless you specifically need GPT-5.6 Terra's edge. Only GPT-5.6 Terra exposes an extended-thinking mode.
Spec comparison
| Claude Haiku 4.5 | GPT-5.6 Terra | |
|---|---|---|
| Price (input) | $1.00/M ✓ | $2.00/M |
| Price (output) | $5.00/M ✓ | $12.00/M |
| Blended price | $2.00/M ✓ | $4.50/M |
| Context window | 200,000 tokens | 400,000 tokens ✓ |
| Max output | 32,000 tokens | 128,000 tokens ✓ |
| Modalities | text, vision | text, vision |
| Reasoning mode | No | Yes |
| Released | 2025-11 | 2026-06 |
| Speed | 148 t/s ✓ | 78 t/s |
Cost at scale (3:1 blended)
| Tokens / month | Claude Haiku 4.5 | GPT-5.6 Terra | Delta |
|---|---|---|---|
| 1,000,000 | $2.00 | $4.50 | $2.50 (2.3×) |
| 10,000,000 | $20.00 | $45.00 | $25.00 (2.3×) |
| 100,000,000 | $200.00 | $450.00 | $250.00 (2.3×) |
Choose Claude Haiku 4.5 if…
- ✓Fastest Claude model
- ✓Lowest Claude pricing
- ✓Vision input included
- ✓Lightweight, high-volume operations like chat, tagging, and moderation.
Choose GPT-5.6 Terra if…
- ✓Balanced cost-to-intelligence ratio
- ✓Reasoning mode available on demand
- ✓Same 400K context as Sol
- ✓Everyday production workloads that need strong quality without Sol-tier pricing.
Run this exact matchup right now
Send the same prompt to Claude Haiku 4.5 and GPT-5.6 Terra side by side and see the outputs yourself.
Try Claude Haiku 4.5 vs GPT-5.6 Terra FreeFAQ
Is Claude Haiku 4.5 cheaper than GPT-5.6 Terra?
Claude Haiku 4.5 is cheaper, at $2.00 per million blended tokens vs $4.50 for GPT-5.6 Terra.
Which has the bigger context window, Claude Haiku 4.5 or GPT-5.6 Terra?
GPT-5.6 Terra has the larger context window: 400,000 tokens vs 200,000.
Can Claude Haiku 4.5 replace GPT-5.6 Terra for coding?
Both are viable for coding. Fastest Claude model (Claude Haiku 4.5) vs Balanced cost-to-intelligence ratio (GPT-5.6 Terra) — pick based on which strength matters more for your workload.
Which is faster, Claude Haiku 4.5 or GPT-5.6 Terra?
Claude Haiku 4.5 is faster: 148 t/s vs 78 t/s, measured on our speed benchmarks.
Related
Pricing verified 2026-04-06. Specs verified 2026-08-08.
