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

CLAUDE SONNET 5 VS GPT-5.6

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

THE VERDICT
3.0x

GPT-5.6 costs 3.0x more than Claude Sonnet 5 for the same job — a 1,000-token prompt with a 3,000-token reply runs $0.10 vs $0.03. At 1,000 runs a day, that gap is $1,890.00 a month for identical traffic.

SIDE BY SIDE

Claude Sonnet 5 →GPT-5.6 →
VendorAnthropicOpenAI
Input / MTok$2.00$5.00
Output / MTok$10.00$30.00
Output multiple5.0x6.0x
1K prompt + 3K reply$0.03$0.10

SAME JOB, BOTH BILLS

ScenarioClaude Sonnet 5GPT-5.6Gap
A typical prompt$0.0096$0.033.0x
A 20-turn conversation$0.05$0.142.9x
Summarizing a 10-page document$0.05$0.142.8x
One agent run$0.12$0.373.0x
A code review request$0.04$0.123.0x

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 Claude Sonnet 5, GPT-5.6 and the other 10 models on the board — plus how much of it is waste either way.