GPT/Flagship

o1 Pro

o1 Pro is GPT's most capable model, priced at $150.00/MTok input and $600.00/MTok output with a 200K 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

$150.00

Output $/MTok

$600.00

Context window

200K

Cache read discount

0% off

o1 Pro pricing breakdown

RateInput $/MTokOutput $/MTok
Standard$150.00$600.00
Cached read (0% off input)$150.00-
Cached write (no surcharge)$150.00-
Batch (50% off)$75.00$300.00

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

o1 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.

o1 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$2.7
Unit Test Generation3,0005,000$3.45
SQL Generation1,5001,000$0.8250
API Generation3,0006,000$4.05
Code Refactoring4,0004,000$3
Code Review5,0002,000$1.95
PR Review8,0003,000$3
Security Review6,0002,500$2.4
Bug Detection5,0002,000$1.95
Document Summarization10,0001,000$2.1
PDF Summarization15,0001,500$3.15
Meeting Notes8,0002,000$2.4

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$2,700$2,700
10K$27,000$27,000
100K$270,000$270,000
500K$1,350,000$1,350,000
1M$2,700,000$2,700,000

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 o1 Pro

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

ModelProviderInput $/MTokOutput $/MTokInput savings
Grok 4.6Grok$2.00$6.0099% cheaper
Grok 4.5Grok$2.00$6.0099% cheaper
Grok 4.7Grok$2.00$6.0099% cheaper
Claude Opus 5.5Claude$4.00$20.0097% cheaper
Claude Opus 4.8Claude$5.00$25.0097% cheaper
Claude Opus 5Claude$5.00$25.0097% cheaper
Claude Opus 4.7Claude$5.00$25.0097% cheaper
Claude Opus 4.6Claude$5.00$25.0097% cheaper
Claude Opus 4.5Claude$5.00$25.0097% cheaper
Claude Fable 5.1Claude$10.00$50.0093% cheaper
Claude Fable 5Claude$10.00$50.0093% cheaper
Claude Mythos 5.1Claude$10.00$50.0093% cheaper
Claude Mythos 5Claude$10.00$50.0093% cheaper

Other GPT models

Track your o1 Pro spend

See exactly how much you spend on o1 Pro and where you can save. Two-line wrapper install, no API keys shared.