Gemini 4 Argon vs GPT-6.1 Sol

$1.99 / task
Wins 3 of 9 benchmarks
$0.21 / task
Wins 3 of 9 benchmarks
Gemini 4 Argon57.1
GPT-6.1 Sol48
Gemini 4 Argon43.5
GPT-6.1 Solat max49.1
Gemini 4 Argon1,678
GPT-6.1 Solat max1,753
Gemini 4 Argon99.2
GPT-6.1 Solat xhigh96.1
Gemini 4 Argon61.8
GPT-6.1 Sol53.2
Gemini 4 Argon52.9
GPT-6.1 Solat max58.1
Gemini 4 Argon—
GPT-6.1 Solat max72.3
Gemini 4 Argon92.2
GPT-6.1 Sol—
MultiLangBench?lab
Gemini 4 Argon—
GPT-6.1 Sol67.5

Specs

SpecGemini 4 ArgonGPT-6.1 Sol
Input, per 1M!$2$2
Output, per 1M!$10$10
Cost per task?$1.99$0.21
Speed, tok/s8445
Context1M1.05M
WeightsClosedClosed
ReleasedOct 2026Sep 2026
See images✓✓
Read PDFs✓Partial
Hear audio✓—
Watch video✓—
Call tools✓✓
Force a tool callPartialPartial
Return strict JSON✓✓
Search the web✓✓
Run code✓✓
Use a computer?✓

What breaks when you switch

Gemini 4 Argon → GPT-6.1 Sol
Remove unsupported parameters›

With reasoning enabled, remove temperature, top_p and top_logprobs, plus Chat Completions logprobs or Responses message.output_text.logprobs includes.

Responses API for tool calling · Chat Completions›

Use Responses for tools; Chat Completions supports this model without tool calling.

No none or minimal reasoning›

The none and minimal reasoning efforts are unsupported; choose low, medium, high, xhigh or max.

More than 272K input tokens›

Prompts above 272K input tokens charge 2× input and cache rates and 1.5× output rates for the entire request.

Cache writes billed at 1.25x›

Cache writes cost 1.25× the uncached input token rate.

Ultrafast prices 6x Standard›

Ultrafast mode costs 6× Standard token prices.

GPT-6.1 Sol → Gemini 4 Argon
Context: 1.05M → 1M
Synchronous output stops at 65,536›

With background false, output limits above 65,536 tokens return HTTP 400; stay at or below that limit.

Sampling parameters are ignored›

temperature, top_p and top_k are ignored; remove them from requests.

No explicit caching›

Explicit caching is unavailable; omit explicit cache requests.