GPT/Flagship

GPT 5 Pro

GPT 5 Pro is GPT's most capable model, priced at $15.00/MTok input and $120.00/MTok output with a 400K context window. Backfilled on 2026-09-23. Prices confirmed by the provider pricing page and the LiteLLM cross-check. Release date not published in a machine-readable source. Not yet benchmarked, so never recommended.

Input $/MTok

$15.00

Output $/MTok

$120.00

Context window

400K

Cache read discount

0% off

GPT 5 Pro pricing breakdown

RateInput $/MTokOutput $/MTok
Standard$15.00$120.00
Cached read (0% off input)$15.00-
Cached write (no surcharge)$15.00-
Batch (50% off)$7.50$60.00

All rates in USD per million tokens. Prices verified against provider documentation.

GPT 5 Pro task benchmarks

Confidence scores (0-100) and cross-provider rank for each task type. Rank 1 is best across all 72 models.

Not benchmarked. The third-party benchmark source used for confidence scores does not cover GPT models yet. Scores will appear here once independent benchmarks are published.

GPT 5 Pro cost by use case

Estimated cost per API call using default token counts for each workload.

Use caseInput tokensOutput tokensCost / call
Code Generation2,0004,000$0.5100
Unit Test Generation3,0005,000$0.6450
SQL Generation1,5001,000$0.1425
API Generation3,0006,000$0.7650
Code Refactoring4,0004,000$0.5400
Code Review5,0002,000$0.3150
PR Review8,0003,000$0.4800
Security Review6,0002,500$0.3900
Bug Detection5,0002,000$0.3150
Document Summarization10,0001,000$0.2700
PDF Summarization15,0001,500$0.4050
Meeting Notes8,0002,000$0.3600

Monthly cost projections

Projected monthly spend at different call volumes, using code generation as a representative workload (2,000 input / 4,000 output tokens per call).

Calls / monthWithout cachingWith caching (0% read discount)
1K$510$510
10K$5,100$5,100
100K$51,000$51,000
500K$255,000$255,000
1M$510,000$510,000

Caching estimate assumes 70% of input tokens are cache reads. Your actual cache hit rate will depend on prompt structure and reuse.

Flagship alternatives to GPT 5 Pro

Same-tier models from other providers, sorted by input price.

ModelProviderInput $/MTokOutput $/MTokInput savings
Grok 4.6Grok$2.00$6.0087% cheaper
Grok 4.5Grok$2.00$6.0087% cheaper
Grok 4.7Grok$2.00$6.0087% cheaper
Claude Opus 5.5Claude$4.00$20.0073% cheaper
Claude Opus 4.8Claude$5.00$25.0067% cheaper
Claude Opus 5Claude$5.00$25.0067% cheaper
Claude Opus 4.7Claude$5.00$25.0067% cheaper
Claude Opus 4.6Claude$5.00$25.0067% cheaper
Claude Opus 4.5Claude$5.00$25.0067% cheaper
Claude Fable 5.1Claude$10.00$50.0033% cheaper
Claude Fable 5Claude$10.00$50.0033% cheaper
Claude Mythos 5.1Claude$10.00$50.0033% cheaper
Claude Mythos 5Claude$10.00$50.0033% cheaper

Other GPT models

Track your GPT 5 Pro spend

See exactly how much you spend on GPT 5 Pro and where you can save. Two-line wrapper install, no API keys shared.