PRICING SNAPSHOT 2026-07-11CLAUDE FABLE 5 $10.00/$50.00 MTOKCLAUDE OPUS 4.8 $5.00/$25.00 MTOKCLAUDE SONNET 5 $2.00/$10.00 MTOKCLAUDE HAIKU 4.5 $1.00/$5.00 MTOKGPT-5.6 $5.00/$30.00 MTOKGPT-5.5 $5.00/$30.00 MTOKGPT-5.4 $2.50/$15.00 MTOKGEMINI 3.1 PRO $2.00/$12.00 MTOKGEMINI 3.5 FLASH $1.50/$9.00 MTOKGEMINI 3 FLASH $0.50/$3.00 MTOKDEEPSEEK V4 PRO $0.43/$0.87 MTOKDEEPSEEK V4 FLASH $0.14/$0.28 MTOK
TOKENBURN_INDEX

THE TICKER · HEAD-TO-HEAD · CHECKED DAILY · LAST CHANGE 2026-07-11

GPT-5.5 VS DEEPSEEK V4 PRO

OpenAI vs DeepSeek, in USD per million tokens, verified daily against public list prices. Same jobs, both meters running.

THE VERDICT
31.2x

GPT-5.5 costs 31.2x more than DeepSeek V4 Pro for the same job — a 1,000-token prompt with a 3,000-token reply runs $0.10 vs $0.0030. At 1,000 runs a day, that gap is $2,758.65 a month for identical traffic.

SIDE BY SIDE

GPT-5.5 →DeepSeek V4 Pro →
VendorOpenAIDeepSeek
Input / MTok$5.00$0.435
Output / MTok$30.00$0.870
Output multiple6.0x2.0x
1K prompt + 3K reply$0.10$0.0030

SAME JOB, BOTH BILLS

ScenarioGPT-5.5DeepSeek V4 ProGap
A typical prompt$0.03$0.000931.2x
A 20-turn conversation$0.14$0.005226.8x
Summarizing a 10-page document$0.14$0.006321.7x
One agent run$0.37$0.0132.7x
A code review request$0.12$0.003930.7x

Output sizes use the same editorial ratios as the Burn Calculator. Estimates, not invoices — and price is not a benchmark: the cheaper model is only a bargain if it does the job.

SETTLE IT WITH YOUR OWN PROMPT

Paste a real prompt into the Burn Calculator and see what it costs on GPT-5.5, DeepSeek V4 Pro and the other 10 models on the board — plus how much of it is waste either way.