Head-to-Head Pricing Benchmark

OpenAI: GPT-5.1 Chat vs Deep Cogito: Cogito v2.1 671B

Side-by-side pricing and context window comparison for production model selection.

Input delta: $0.00Output delta: $8.75Monthly delta: $525

Default Recommendation (120M input + 60M output)

Deep Cogito: Cogito v2.1 671B is lower-cost for the default monthly workload scenario.

Adjust the workload in the calculator below to see a live recommendation for your usage.

MetricOpenAI: GPT-5.1 ChatDeep Cogito: Cogito v2.1 671B
Developeropenaideepcogito
Context Window128,000128,000
Input Cost / 1M Tokens$1.25$1.25
Output Cost / 1M Tokens$10.00$1.25
Projected Monthly Cost$750$225
Vision✅ Yes❌ No
Tool Calling✅ Yes❌ No
Structured Output✅ Yes✅ Yes
Reasoning❌ No✅ Yes
Web Search❌ No❌ No
MMLU ScoreN/AN/A

Price History

OpenAI: GPT-5.1 Chat Pricing Trend

Input / 1M tokens0.0%Output / 1M tokens0.0%
Mar 7Mar 16
$1.25$5.63$10.00Mar 7Mar 9Mar 12Mar 14Mar 16

Current Input / 1M

$1.25

Current Output / 1M

$10.00

Price History

Deep Cogito: Cogito v2.1 671B Pricing Trend

Input / 1M tokens0.0%Output / 1M tokens0.0%
Mar 7Mar 16
$1.25$1.25$1.25Mar 7Mar 9Mar 12Mar 14Mar 16

Current Input / 1M

$1.25

Current Output / 1M

$1.25

Cost Calculator

Adjust your workload to see projected monthly costs.

01.0B
0500M

OpenAI: GPT-5.1 Chat

$750

per month

Deep Cogito: Cogito v2.1 671B

$225

per month

Lower cost

Live Recommendation

Deep Cogito: Cogito v2.1 671B is lower-cost at 120M input + 60M output tokens/month.

Deep Cogito: Cogito v2.1 671B saves $525/mo at this workload
Open OpenAI: GPT-5.1 Chat model pageOpen Deep Cogito: Cogito v2.1 671B model page

Compare More Alternatives

Continue evaluation with more “A vs B pricing” decision pages.

Quick Compare

Compare Any Two Models

Select two models to see a head-to-head pricing breakdown.