gpt-5.5
Input $0.55 USD · Output $3.30 USD / 1M tokens
Minimum request: $0.0001 USD
chat comparison
gpt-5.5vsgpt-5.6-terra
Compare the things that matter before you build: current price, capabilities, and latest aggregated LLM7 statistics.
Current pricing
See the cost difference clearly
gpt-5.6-terra
Input $0.50 USD · Output $2.00 USD / 1M tokens
Minimum request: $0.0002 USD
What's different
Only capabilities that differ between these models are listed. Green highlights the broader supported option or larger context window.
Context window
gpt-5.5Better fit
1,050,000 tokens
gpt-5.6-terra
1,000,000 tokens
Input formats
gpt-5.5
text, image
gpt-5.6-terra
text
Vision
gpt-5.5Better fit
Supported
gpt-5.6-terra
Not supported
Reasoning
gpt-5.5Better fit
Supported
gpt-5.6-terra
Not supported
Latest LLM7 statistics
Recent aggregated percentages and response-time metrics from LLM7, not a global model benchmark or traffic disclosure.
Recent stability
gpt-5.5
94.88%
gpt-5.6-terra
98.47%
Average response time
gpt-5.5
7,627.26 ms
gpt-5.6-terra
10,237.89 ms
P95 API latency
gpt-5.5
30,000 ms
gpt-5.6-terra
60,000 ms
Side-by-side trends
Shared charts make the observed differences easier to read. Metrics without enough history stay hidden.
Request success rate
Both models on the same scale
gpt-5.5: 99.1%gpt-5.6-terra: 98.9%
Average API latency
Both models on the same scale
gpt-5.5: 5,321 msgpt-5.6-terra: 11,566 ms
P95 API latency
Both models on the same scale
gpt-5.5: 30,000 msgpt-5.6-terra: 60,000 ms
Estimate your workload
Try the same request volume against both public price lists.
Cost calculator
Adjust the volume to see an instant estimate at the current public price.
01M
Input estimate
$0.0055
Output estimate
$0.00825
Estimated total
$0.01375
Cost calculator
Adjust the volume to see an instant estimate at the current public price.
01M
Input estimate
$0.005
Output estimate
$0.005
Estimated total
$0.01
Quick take
- gpt-5.5 has a larger context window.
- gpt-5.5 supports image input while the other model does not.
- gpt-5.6-terra recorded higher recent LLM7 stability during this period.
- gpt-5.5 recorded a lower observed p95 API latency on LLM7 during this period.