Overage / Compare / LLM APIs
AI21 Labs vs Anthropic API pricing Monthly cost at three volumes Monthly cost of AI21 Labs and Anthropic API at three volumes and at your own Volume AI21 LabsCheapest model Jamba Mini Jamba Large Anthropic APICheapest model Claude Fable 5.1 Claude Opus 5.5 Claude Sonnet 5.5 Claude Haiku 5.5 (prompt <=100K tokens) Claude Haiku 5.5 (prompt >100K tokens) Claude Mythos 5.1 Claude Fable 5 Claude Mythos 5 Claude Opus 5 Claude Opus 4.8 Claude Opus 4.7 Claude Opus 4.6 Claude Opus 4.5 Claude Opus 4.1 Claude Opus 4 Claude Sonnet 5 Claude Sonnet 4.6 Claude Sonnet 4.5 Claude Sonnet 4 Claude Haiku 4.5 Claude Haiku 3.5 small1M input, 200K output $0.28 / moJamba Mini $0.20 / moClaude Haiku 5.5 (prompt <=100K tokens) growing50M input, 10M output $14 / moJamba Mini $10 / moClaude Haiku 5.5 (prompt <=100K tokens) scale1B input, 200M output $280 / moJamba Mini $200 / moClaude Haiku 5.5 (prompt <=100K tokens) your volumeset above $14 / moJamba Mini $10 / moClaude Haiku 5.5 (prompt <=100K tokens)
Each cell is the cheapest feasible plan, or the chosen model, at that volume, from the shared Overage cost function. "Cheapest model" only considers models with both an input and an output price listed. Volumes are example scenarios you can edit.
Cheapest model per service, USD per 1M tokens Cheapest priced model of each service Service Cheapest model Input Output Models listed AI21 Labs Jamba Mini $0.20 $0.40 2 Anthropic API Claude Haiku 5.5 (prompt <=100K tokens) $0.10 $0.50 21
Every model Every model of both services, USD per 1M tokens Model Service Input Output Jamba Mini AI21 Labs $0.20 $0.40 Jamba Large AI21 Labs $2 $8 Claude Haiku 5.5 (prompt <=100K tokens) Anthropic API $0.10 $0.50 Claude Haiku 5.5 (prompt >100K tokens) Anthropic API $0.50 $2.50 Claude Haiku 3.5 Anthropic API $0.80 $4 Claude Haiku 4.5 Anthropic API $1 $5 Claude Sonnet 5.5 Anthropic API $2 $10 Claude Sonnet 5 Anthropic API $2 $10 Claude Sonnet 4.6 Anthropic API $3 $15 Claude Sonnet 4.5 Anthropic API $3 $15 Claude Sonnet 4 Anthropic API $3 $15 Claude Opus 5.5 Anthropic API $4 $20 Claude Opus 5 Anthropic API $5 $25 Claude Opus 4.8 Anthropic API $5 $25 Claude Opus 4.7 Anthropic API $5 $25 Claude Opus 4.6 Anthropic API $5 $25 Claude Opus 4.5 Anthropic API $5 $25 Claude Fable 5.1 Anthropic API $10 $50 Claude Mythos 5.1 Anthropic API $10 $50 Claude Fable 5 Anthropic API $10 $50 Claude Mythos 5 Anthropic API $10 $50 Claude Opus 4.1 Anthropic API $15 $75 Claude Opus 4 Anthropic API $15 $75
Models are compared by name and price, never by position. Pick one model per service, or "Cheapest model", in the cost table above.
Tiers, aligned by position Tiers of AI21 Labs and Anthropic API aligned by position: free, entry, mid, top Position AI21 Labs Anthropic API Free $0 once Free Trial no tier Entry unlisted Pay As You Go no tier Mid no tier no tier Top Contact sales Custom Plan no tier
Tightest rate limit Tightest documented rate limit of each service Measure AI21 Labs Anthropic API Tightest limit unlisted unlisted
Changes in the last 90 days Before not listed → After $2 input, $10 output per 1M tokens new