DeepSeek V3.1 Terminus
DeepSeek · text → text
DeepSeek-V3.1 non-thinking mode has now been updated to the DeepSeek-V3.1-Terminus version.
Input$0.56 /M
Output$1.68 /M
← ModelsDeepSeek V3.1 Terminus
Qwen3.8 Max Preview
DeepSeek V3.1 Terminus vs Qwen3.8 Max Preview
Output tokens cost $1.68 per million on DeepSeek V3.1 Terminus and $1.01 per million on Qwen3.8 Max Preview. Input tokens cost $0.56 per million on DeepSeek V3.1 Terminus and $0.34 per million on Qwen3.8 Max Preview. Cached input tokens are billed at $0.56 per million on DeepSeek V3.1 Terminus and $0.03 per million on Qwen3.8 Max Preview. Context lengths are 160,000 tokens on DeepSeek V3.1 Terminus and 983,616 tokens on Qwen3.8 Max Preview. Time to first token (TTFT) measured on AIHubMix is 1.3s on DeepSeek V3.1 Terminus and 2.4s on Qwen3.8 Max Preview. Measured output throughput is 31.5 tok/s on DeepSeek V3.1 Terminus and 48.1 tok/s on Qwen3.8 Max Preview. On the LMArena coding leaderboard DeepSeek V3.1 Terminus scores 1439 and Qwen3.8 Max Preview scores 1520.
DeepSeek V3.1 TerminusQwen3.8 Max Preview+ Add model · 2/4
Qwen3.8 Max Preview
Qwen · text, image → text
Qwen 3.8 Max Preview(Qwen3.8-Max-Preview) is the latest-generation foundation model in the Qwen family, packing 2.4T parameters and still evolving. Compared with the previous flagship Qwen 3.7 Max, it delivers major gains in core capabilities like Coding and Cowork (professional productivity), with world-leading performance on complex, long-horizon tasks such as full-stack development, data analysis, and Office workflows. Launch offer: Credits are consumed at just 20% of the standard rate, effectively 5× your usage. Limited time only.
Input$0.34 /M
Output$1.01 /M
Pricing & Specifications
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
DeepSeek V3.1 Terminus
Qwen3.8 Max Preview
Input /M
$0.56
$0.34
Output /M
$1.68
$1.01
Cache read /M
$0.56
$0.03
Context length
160,000
983,616
Max output
32,000
131,072
Time to First Token
1.3 s
2.4 s
Throughput
31.5 tok/s
48.1 tok/s
Modalities
text
textimage
Supported Parameters
toolsfunction callingstructured outputs
toolsfunction callingstructured outputsweblong contextthinking
API Formats
Released
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Promotional prices show the discounted rate; see each model page for promotion windows.
Activity Past 30 Days
Daily traffic served through AIHubMix — how demand for each model is trending.
DeepSeek-V3.1-Terminusqwen3.8-max-preview
Tokens / day
-
Requests / day
-
Performance Past 3 Days
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
DeepSeek-V3.1-Terminusqwen3.8-max-preview
Throughput (tok/s)
-
TTFT (s)
-
Uptime (%)
-
LMArena Benchmarks
LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.
Text
DeepSeek-V3.1-Terminusqwen3.8-max-preview
1360142014801540
Overall
14161481
Coding
14391520
Math
13951504
Hard prompts
14241506
Instruction following
13941478
Multi-turn
13941496
Creative writing
14081469
Longer query
14191497
Chinese
15451545
English
14231486
Source: LMArena (arena.ai) leaderboard, imported by AIHubMix. Models without published ratings are omitted per chart.
Cost calculator
Estimate your monthly bill for the same workload on each model.
Qwen3.8 Max Preview
$35.49 /mo
DeepSeek V3.1 Terminus
$58.80 /mo
Monthly = daily × 30. Discounted rates applied where a promotion is active.
FAQ
Which is cheaper: DeepSeek V3.1 Terminus, Qwen3.8 Max Preview?
Qwen3.8 Max Preview: $1.01/M output tokens; DeepSeek V3.1 Terminus: $1.68/M. Use the cost calculator above to estimate your own workload.
How do their coding arena scores compare?
Qwen3.8 Max Preview: 1520; DeepSeek V3.1 Terminus: 1439 (LMArena coding leaderboard).
Which responds faster?
DeepSeek V3.1 Terminus: 1.3s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.
How large is each context window?
DeepSeek V3.1 Terminus accepts 160,000 and Qwen3.8 Max Preview accepts 983,616 input tokens. Maximum output per request is 32,000 tokens on DeepSeek V3.1 Terminus and 131,072 tokens on Qwen3.8 Max Preview.
Which one generates tokens faster?
Qwen3.8 Max Preview at 48.1 tok/s and DeepSeek V3.1 Terminus at 31.5 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.
What inputs and capabilities does each model support?
DeepSeek V3.1 Terminus accepts text input and supports tool calling, function calling and structured outputs; Qwen3.8 Max Preview accepts text and image input and supports tool calling, function calling, structured outputs, web search, long context and thinking.
Can I call DeepSeek V3.1 Terminus and Qwen3.8 Max Preview with the same API key?
Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.
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