Claude Opus 5.5 leads the current AA Intelligence Index, 58 to 32. DeepSeek V4.1 Flash 1017 has the lower illustrated request cost, $0.0042 versus $0.06; output speed is 178.3 versus 98.3 tokens/s.
AA SciCode: DeepSeek V4.1 Flash 1017 55.90% / Claude Opus 5.5 66.90%.12
Reasoning benchmark
Current reference output speed is 178.3 tokens/s for DeepSeek V4.1 Flash 1017 and 98.3 tokens/s for Claude Opus 5.5.12
Context window (tokens)
DeepSeek accepts the larger listed context, 1,048,576 tokens versus Claude’s 1,000,000.12
Estimated request cost
The uncached token budget favors DeepSeek at $0.0042; Claude’s example is $0.06.43
Methodology and sources
SciCode is AA’s scientific-coding evaluation, reported as a percentage; higher is better. It is separate from the 10,000-input-token performance test and is not an in-editor Cline evaluation. Quality and performance use the configurations shown beside the model names. A current AA v5 Intelligence Index is displayed only where both models have a published value. AA performance uses the 10,000-input-token benchmark at each model’s displayed configuration; reasoning settings vary by model. Output speed is the median output rate. Answer latency measures the first answer token after reasoning, not the initial streamed reasoning chunk. For non-streamed reasoning and non-reasoning models, AA reports the same first-chunk and first-answer event. AA estimates answer latency from initial response and reasoning duration; it is not a separately sampled median. These are reference deployments, not Novita endpoint guarantees. The uncached cost example bills 10,000 input and 1,000 output tokens at each named seller’s tariff; it is not the cost of the AA benchmark. Prices, context and output limits use the cited seller sources.4