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chat comparison

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gpt-5.5vsgpt-oss:20b

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Compare the things that matter before you build: current price, capabilities, and latest aggregated LLM7 statistics.

Current pricing

See the cost difference clearly

Directly comparable

gpt-5.5

Input $0.55 USD · Output $3.30 USD / 1M tokens

Minimum request: $0.0001 USD

gpt-oss:20b

Input $0.04 USD · Output $0.06 USD / 1M tokens

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-oss:20b

128,000 tokens

Input formats

gpt-5.5

text, image

gpt-oss:20b

text

Vision

gpt-5.5Better fit

Supported

gpt-oss:20b

Not supported

Reasoning

gpt-5.5Better fit

Supported

gpt-oss:20b

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

82%

gpt-oss:20b

98.79%

Average response time

gpt-5.5

15,646.35 ms

gpt-oss:20b

6,761.57 ms

P95 API latency

gpt-5.5

60,000 ms

gpt-oss:20b

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: 100%gpt-oss:20b: 98.6%
25 Jul9 Aug

Average API latency

Both models on the same scale

gpt-5.5: 4,105 msgpt-oss:20b: 15,522 ms
25 Jul9 Aug

P95 API latency

Both models on the same scale

gpt-5.5: 5,000 msgpt-oss:20b: 60,000 ms
25 Jul9 Aug

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.

1M tokens
10,000 tokens
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.

1M tokens
10,000 tokens
01M

Input estimate

$0.0004

Output estimate

$0.00015

Estimated total

$0.00055

Quick take

  • gpt-5.5 has a larger context window.
  • gpt-5.5 supports image input while the other model does not.
  • gpt-oss:20b recorded higher recent LLM7 stability during this period.

Keep exploring