GPT-5.1-Codex-Mini vs Seed 1.6
Prices checked
GPT-5.1-Codex-Mini takes 2 of 5 rounds against Seed 1.6. It is also the cheaper of the two to run, at $0.61 per million tokens against $0.69.
OpenAIWins 2 roundsGPT-5.1-Codex-Mini
400k context · tool calling · reads images
$0.61/M tokensCheapest price, at Poe · $0.24 per 1,000 pages
ByteDanceSeed 1.6
262k context · tool calling · reads images
$0.69/M tokensOpenRouter's own price · $0.27 per 1,000 pages
Maker's price in (lower wins)
$0.25/M
$0.25/M
Maker's price out (lower wins)
$2/M
$2/M
Cheapest price (lower wins)
$0.61/M at Poe
none below the maker
Maker's price, blended (lower wins)
$0.69/M
$0.69/M
Cost per 1,000 pages (lower wins)
$0.24
$0.27
Context
400k tokens
262k tokens
Open weights
not published
not published
Tool calling
yes
yes
Structured output
yes
yes
Reads images
yes
yes
Reasoning
yes
yes
Released
13 Nov 2025
23 Dec 2025
Providers selling it
18
7
Price we measure against
OpenRouter
OpenRouter
Trains on your prompts (no is better)
not published
no provider to check
Providers selling both · 6
Eden AI$0.69 / $0.69
Kilo Gateway$0.69 / $0.69
LLM Gateway$0.69 / $0.69
Nous Portal$0.69 / $0.69
OpenRouter$0.69 / $0.69
Vercel AI Gateway$0.69 / $0.69
GPT-5.1-Codex-Mini, then Seed 1.6, per million tokens.
Go further
Add a third or fourth model, or change the weighting, in the tool.
Frequently asked
- Which is cheaper, GPT-5.1-Codex-Mini or Seed 1.6?
- GPT-5.1-Codex-Mini, at $0.61 per million tokens against $0.69 for Seed 1.6, blended 3 in : 1 out, read on 31 Oct 2026.
- Where is each one cheapest?
- GPT-5.1-Codex-Mini: $0.61 at Poe. Seed 1.6: nobody sells it below OpenRouter's own price with a stated reason, so $0.69 is the number to beat.
- Can I buy both from one provider?
- Yes. 6 providers sell both: Eden AI, Kilo Gateway, LLM Gateway, Nous Portal, OpenRouter, Vercel AI Gateway. The cheapest of them for the two together is Eden AI.
- Which holds more context?
- GPT-5.1-Codex-Mini, at 400k tokens against 262k.
Prices exclude tax, read 31 Oct 2026 from each provider's own catalog. They are per M tokens, blended 3 in : 1 out, and a page is 600 tokens in and 60 out. Bars are scaled to the larger value in each row.
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